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205. Elastic trapping by acoustoelastically induced transpareny

Dongwoo Lee†, Jeonghoon Park†, Seokwoo Kim, Beomseok Oh, Xianji Piao, Namkyoo Park, Junsuk Rho*

Communications Physics. vol. 8, no. 87, March 2025

204. Programmable photonic unitary circuits for light computing

Kyuho Kim†, Kunwoo Park†, Hyungchul Park, Sunkyu Yu*, Namkyoo Park*, and Xianji Piao*

Nanophotonics. https://doi.org/10.1515/nanoph-2024-0602, February 2025

203. Deep-subwavelength engineering of stealthy hyperuniformity

Jusung Park, Seungkyun Park, Kyuho Kim, Jeonghun Kwak, Sunkyu Yu, and Namkyoo Park

Nanophotonics. https://doi.org/10.1515/nanoph-2024-0541, January 2025

202. Computing Riemann zeros with light scattering
Sunkyu Yu, Xianji Piao, and Namkyoo Park
Physical Review B. 110, L220201, December 2024

201. Long-range-interacting topological photonic lattices breaking channel-bandwidth limit

Gyunghun Kim, Joseph Suh, Dayeong Lee, Namkyoo Park, and Sunkyu Yu

Light: Science & Applications (nature journal) 13, 189, September 2024

200. Nonreciprocal field transformation with active acoustic metasurfaces

Xinhua Wen, Choonlae Cho, Xinghong Zhu, Namkyoo Park, and Jensen Li

Science Advances, vol. 10, no. 22, eadm9673, May 2024

199. Programmable Photonic Time Circuits for Highly Scalable Universal Unitaries

Xianji Piao, Sunkyu Yu, and Namkyoo Park

Physical Review Letters, vol. 132, iss. 10, pp. 103801, March 2024

198. Photonic Topological Spin Pump in Synthetic Frequency Dimensions

Joseph Suh, Gyunghun Kim, Hyungchul Park, Shanhui Fan, Namkyoo Park, and Sunkyu Yu

Physical Review Letters, vol. 132, iss. 3, pp.033803, January 2024

197. A Mobile Two-Dimensional Ultrasound Focusing System for Personalized Healthcare Applications through a Dodecagonal Quasicrystal Patterned Planar Lens

Yongrok Jeong†, Hyeokjung Kang†, Moonjeong Bok†, Soon Hyoung Hwang, Sohee Jeon, Junseong Ahn, Ji-Hwan Ha, Jiwoo Ko, Jeong Won Park, Wonjae Choi, Inkyu Park, Namkyoo Park, Jun-ho Jeong

Advanced Materials Technologies (cover paper), no.2202173 (Early view), July 2023

196. Acoustic Amplifying Diode Using Nonreciprocal Willis Coupling

Xinhua Wen, Heung Kit Yip, Choonlae Cho, Jensen Li, and Namkyoo Park

Physical Review Letters, vol. 130, iss. 17, pp.176101, April 2023

195. Heavy tails and pruning in programmable photonic circuits for universal unitaries

Sunkyu Yu, and Namkyoo Park

Nature Communications, vol. 14, no. 1853, April 2023

194. Scalable manufacturing of high-index atomic layer–polymer hybrid metasurfaces for metaphotonics in the visible

Joohoon Kim, Junhwa Seong, Wonjoong Kim, Gun-Yeal Lee, Seokwoo Kim, Hongyoon Kim, Seong-Won Moon, Dong Kyo Oh, Younghwan Yang, Jeonghoon Park, Jaehyuck Jang, Yeseul Kim, Minsu Jeong, Chanwoong Park, Hojung Choi, Gyoseon Jeon, Kyung-il Lee, Dong Hyun Yoon, Namkyoo Park, Byoungho Lee, Heon Lee, and Junsuk Rho

Nature Materials, March 2023

193. Unidirectional scattering with spatial homogeneity using correlated photonic time disorder

Jungmin Kim , Dayeong Lee, Sunkyu Yu, and Namkyoo Park

Nature Physics, February 2023

192. Elastic bound states in the continuum by acoustoelastic interaction

Dongwoo Lee, Jeonghoon Park, Seokwoo Kim, Jungho Mun , Jaekyung Kim, Xianji Piao, Namkyoo Park, and Junsuk Rho

Extreme Mechanics Letters, vol. 61, June 2023

191. Revealing non-Hermitian band structure of photonic Floquet media

Jagang Park† Hyukjoon Cho† Seojoo Lee† Kyungmin Lee, Kanghee Lee, Hee Chul Park, Jung-Wan Ryu, Namkyoo Park, Sanggeun Jeon, and Bumki Min

Science Advances, vol. 8, no. 40, October 2022

190. Control of localization and optical properties with deep-subwavelength engineered disorder

Seunghwa Oh, Jungmin Kim, Xianji Piao, Seulong Kim, Kihong Kim, Sunkyu Yu, and Namkyoo Park

Optics Express, vol. 30, no. 16, pp. 28301-28311, July 2022

189. Topologically Protected All-Optical Memory

Seou Choi, Jungmin Kim, Jeonghun Kwak, Namkyoo Park, and Sunkyu Yu

Advanced Electronic Materials, no. 2200579, June 2022 (Early View)

188. Hearing the shape of a drum for light: isospectrality in photonics

Seungkyun Park, Ikbeom Lee, Jungmin Kim, Namkyoo Park and Sunkyu Yu

Nanophotonics , vol. 11, iss. 11, pp. 2763-2778, June 2022

187. The latest trends in nanophotonics

Minkyung Kim, Namkyoo Park, Hak Joo Lee and Junsuk Rho

Nanophotonics, vol. 11, iss. 11, pp. 2389-2392 , May 2022

186. Wave Delocalization from Clustering in Two-Dimensional Non-Hermitian Disordered Lattices

Xianji Piao and Namkyoo Park

ACS Photonics, https://doi.org/10.1021/acsphotonics.2c00032, April 2022

185. Machine-Engineered Active Disorder for Digital Photonics

Jungmin Kim, Seungkyun Park, Sunkyu Yu and Namkyoo Park

Advanced Optical Materials (cover paper), vol. 10, iss. 7, no. 2102642, April 2022

184. Photonic topological Lifshitz interfaces

Xianji Piao, Jonghwa Shin, and Namkyoo Park

Nanophotonics , vol. 11, iss. 6, pp. 1211-1217, February 2022

183.Quantum mechanical rotation of a photon polarization by Earth’s gravitational field

Hansol Noh, Paul M. Alsing, Doyeol Ahn, Warner A. Miller and Namkyoo Park

npj Quantum Information, vol. 7, no. 163, November 2021

182. Polarization Selective Transparent Electrode With Patterned Metal for the 3D Display Pixel

Young Jin Jung and Namkyoo Park

IEEE Photonics Journal, vol. 13, iss. 5, no. 2500107, October 2021

181. Topologically protected optical signal processing using parity–time-symmetric oscillation quenching

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Nanophotonics, vol. 10, iss. 11, pp. 2883-2891, July 2021

180. Acoustic Willis meta-atom beyond the bounds of passivity and reciprocity

Choonlae Cho†, Xinhua Wen†, Namkyoo Park and Jensen Li

Communications Physics, vol. 4, no. 82, April 2021

179. A Transformative Metasurface Based on Zerogap Embedded Template

Bamadev Das, Hyeong Seok Yun, Namkyoo Park, Jeeyoon Jeong, and Dai-Sik Kim

Advanced Optical Materials, vol.9, iss. 11, no. 2002164, June 2021

178. Topology-Changing Broadband Metamaterials Enabled by Closable Nanotrenches

Dasom Kim†, Hyeong Seok Yun†, Bamadev Das†, Jiyeah Rhie, Parinda Vasa, Young-Il Kim, Sung-Hoon Choa, Namkyoo Park, Dukhyung Lee, Young-Mi Bahk, and Dai-Sik Kim

Nano Letters, vol. 21, no. 10, pp. 4202-4208, March 2021

177. Dispersion-controlled gold-aluminum-silicon dioxide-aluminum nanopawn structure for visible to NIR light modulation

Jusung Park†, Sungjun In†, and Namkyoo Park

Advanced Materials (cover paper), vol. 33, iss. 15, no. 2007831, April 2021

176. Engineered disorder in photonics (Invited, Review Paper)

Sunkyu Yu, Cheng-Wei Qiu, Yidong Chong, Salvatore Torquato, and Namkyoo Park

Nature Reviews Materials, vol. 6, iss. 3, pp. 226–243, March 2021

175. High-Speed Transmission Control in Gate-Tunable Metasurfaces Using Hybrid Plasmonic Waveguide Mode

Yohan Lee, Jeongse Yun, Sun-Je Kim, Minjee Seo, Sungjun In, Hee-Dong Jeong, Seung-Yeol Lee, Namkyoo Park, Taek Dong Chung, and Byoungho Lee

Advanced Optical Materials, vol. 8, iss. 22, no. 2001256, September 2020

174. Self-Organized Gold Network–Vanadium Dioxide Hybrid Film for Dynamic Modulation of Visible-to-Near-Infrared Light

Sungjun In, Jinchul Cho†, Jusung Park†, So Yeun Kim, Hyun-Tak Kim, Tae Won Noh, and Namkyoo Park

Advanced Photonics Research (cover paper), vol. 1, iss. 1, no. 2000050 , September 2020

173. Machine learning identifies scale-free properties in disordered materials

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Nature Communications, vol. 11, no. 4842, September 2020

172. Topological Hyperbolic Lattices

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Physical Review Letters (cover paper), vol. 125, iss. 5, pp. 053901, July 2020

171. Mitigation of B1+ inhomogeneity for ultra-high-field magnetic resonance imaging: mode shaping with auxiliary EM potential

Minkyu Park, Hansol Noh, and Namkyoo Park

Scientific Reports, vol. 10, no. 11752, July 2020

170. New trends in nanophotonics

Sunae So, Namkyoo Park, Hak Joo Lee, Junsuk Rho

Nanophotonics, vol. 9, iss. 5, pp. 983-985, May 2020

169. Elastic Hamiltonians for quantum analog applications

Choonlae Cho, Sunkyu Yu, and Namkyoo Park

Physical Review B, vol. 101, iss. 13, 134107, April 2020

168. Universal design platform for an extended class of photonic Dirac cones

Jungmin Kim, Sunkyu Yu, and Namkyoo Park

Physical Review Applied, vol. 13, iss. 4, 044015, April 2020

167. Digitally Virtualized atoms for acoustic metamaterials

Choonlae Cho†, Xinhua Wen†, Namkyoo Park and Jensen Li

Nature Communications, vol. 11, no. 251, January 2020

166. Chirality in Non-Hermitian Photonics (Invited, Review Paper)

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Current Optics and Photonics, vol. 3, no. 4, pp. 275-284, August 2019

165. Steering second-harmonic radiation through local excitations of plasmon

Kyungwan Yoo, Simon F. Becker, Martin Silies, Sunkyu Yu, Christoph Lienau, and Namkyoo Park

Optics Express, vol. 27, no. 13, pp. 18246-18261, June 2019

164. Neuromorphic Functions of Light in Parity‐Time‐Symmetric Systems

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Advanced Science (cover paper), vol. 6, iss. 15, pp. 1900771, June 2019

163. Retrieving continuously-varying effective properties of non-resonant acoustic metamaterials

Dongwoo Lee†, Jungho Mun†, Choonlae Cho, Namkyoo Park, and Junsuk Rho

Applied Physics Express, vol. 12, no.5, pp. 052008, April 2019

162. Demonstration of steering acoustic waves by generalized Eaton lens

Dongwoo Lee†, Choonlae Cho†, Jungho Mun, Namkyoo Park, and Junsuk Rho

Applied Physics Letters, vol. 113, no.16, pp. 161904, October 2018

161. Design of transverse spinning of light with globally unique handedness

Xianji Piao, Sunkyu Yu, and Namkyoo Park

Physical Review Letters, vol. 120, iss. 20, pp. 203901, May 2018

160. Bohmian photonics for independent control of the phase and amplitude of waves

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Physical Review Letters, vol. 120, iss. 19, pp. 193902, May 2018

159. Disordered Potential Landscapes for Anomalous Delocalization and Superdiffusion of Light

Sunkyu Yu, Xianji Piao, and Namkyoo Park

ACS Photonics, vol. 5, iss. 4, pp. 1499–1505, April 2018

158. Ultrathin organic solar cells with a power conversion efficiency of over ~13.0%, based on the spatial corrugation of the metal electrode - cathode Fabry-Perot cavity

Sungjun In and Namkyoo Park

Advanced Science, vol. 5, iss. 4, pp. 1700900, April 2018

157. Eight Inch Wafer-Scale Flexible Polarization-Dependent Color Filters with Ag−TiO2 Composite Nanowires

Zhi-Jun Zhao†, Minpyo Lee†, Hyeokjung Kang, SoonHyoung Hwang, Sohee Jeo, Namkyoo Park, Sang-Hu Park, and Jun-Ho Jeong

ACS Applied Materials & Interfaces, vol. 10, iss. 10, pp. 9188-9196, March 2018

156. Designing non-Hermitian dynamics for conservative state evolution on the Bloch sphere

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Physical Review A, vol. 97, iss. 3, pp. 033805, March 2018

155. Colossal Terahertz Field Enhancement Using Split-Ring Resonators with a Sub-10 nm Gap

Nayeon Kim, Sungjun In, Dukhyung Lee, Jiyeah Rhie, Jeeyoon Jeong, Dai-Sik Kim, and Namkyoo Park

ACS Photonics, vol. 5, iss. 2, pp. 278-283, February 2018

154. Controlling Random Waves with Digital Building Blocks Based on Supersymmetry

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Physical Review Applied, vol. 8, iss. 5, pp. 054010, November 2017

153. Interface defect-assisted phonon scattering of hot carriers in graphene

Sergey G. Menabde, Hyunwoo Cho, and Namkyoo Park

Physical Review B, vol. 96, no. 075426, August 2017

152. Target decoupling in coupled systems resistant to random perturbation

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Scientific Reports, vol. 7, no. 2139, May 2017

151. Low-dimensional gap plasmons for enhanced light-graphene interactions

Yunjung Kim, Sunkyu Yu and Namkyoo Park

Scientific Reports, vol. 7, no. 43333, February 2017

150. Ultimate terahertz field enhancement of single nanoslits

Young-Mi Bahk, Sanghoon Han, Jiyeah Rhie, Joohyun Park, Hyeongtag Jeon, Namkyoo Park, and Dai-Sik Kim

Physical Review B, vol. 95, no. 075424, February 2017

149. Top-down, decoupled control of constitutive parameters in electromagnetic metamaterials with dielectric resonators of anisotropy

Sukmo Koo, Daniel R. Mason, Yunjung Kim, and Namkyoo Park

Scientific Reports, vol. 7, no. 42447, February 2017

148. Acceleration toward polarization singularity inspired by relativistic E×B drift

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Scientific Reports, vol. 6, no. 37754, November 2016

147. Metadisorder for designer light in random systems

Sunkyu Yu, Xianji Piao, Jiho Hong, and Namkyoo Park

Science Advances, vol. 2, no. 10, pp. e1501851, October 2016

146. Acoustic omni meta-atom for decoupled access to all octants of a wave parameter space

Sukmo Koo, Choonlae Cho, Jun-ho Jeong and Namkyoo Park

Nature Communications, vol. 7, no. 13012, September 2016

145. Low-dimensional optical chirality in complex potentials

Sunkyu Yu†, Hyun Sung Park†, Xianji Piao, Bumki Min, and Namkyoo Park

Optica (cover paper), vol. 3, no. 9, pp. 1025-1032, September 2016

144. Interdimensional optical isospectrality inspired by graph networks

Sunkyu Yu, Xianji Piao, Jiho Hong, and Namkyoo Park

Optica, vol. 3, no. 8, pp. 836-839, July 2016

143. Effect of Structural Asymmetry on Three Layer Plasmonic Waveguide Properties

Viacheslav Shaidiuk, Sergey G. Menabde, and Namkyoo Park

Journal of the Optical Society of America B, vol. 33, no. 5, April 2016

142. Independent Color Filtering of Differently Polarized Light Using Metal-Insulator-Metal Type Guided Mode Resonance Structure

Young Jin Jung, and Namkyoo Park

Journal of the Optical Society of Korea, vol. 20, no. 1, pp. 180-187, February 2016

141. Inverted Ultrathin Organic Solar Cells with Quasi-Grating for Efficient Carrier Collection and Dip-less Visible Optical Absorption

Sungjun In, and Namkyoo Park

Scientific Reports, vol. 6, no. 21784, February 2016

140. Direct Optical Probing of Transverse Electric Mode in Graphene

Sergey G. Menabde, Daniel R. Mason, Evgeny E. Kornev, Changhee Lee, and Namkyoo Park

Scientific Reports, vol. 6, no. 21523, February 2016

139. Terahertz field enhancement in asymmetric and tapered nano-gaps

Sanghoon Han, Young-Mi Bahk, Namkyoo Park, and Dai-Sik Kim

Optics Express, vol. 24, no. 3, pp. 2065-2071, January 2016

138. Graphene-ferroelectric metadevices for nonvolatile memory and reconfigurable logic-gate operations

Woo Young Kim, Hyeon-Don Kim, Teun-Teun Kim, Hyun-Sung Park, Kanghee Lee, Hyun Joo Choi, Seung Hoon Lee, Jaehyeon Son, Namkyoo Park, and Bumki Min

Nature Communications, vol. 7, no. 10429, January 2016

137. Terahertz transmission through rings of quantum dots-nanogap

Laxmi-Narayan Tripathi, Young-Mi Bahk, Geunchang Choi, Sanghoon Han, Namkyoo Park, and Dai-Sik Kim

Applied Physics Express, vol. 9, no. 3, January 2016

136. Gap-plasmon enhanced nanofocusing near-field microscopy

Simon F Becker, Martin Esmann, Kyungwan Yoo, Petra Groß, Ralf Vogelgesang, Namkyoo Park, and Christoph Lienau

ACS Photonics, vol. 3, no. 2, pp. 223-232, January 2016

135. Suppression of Radiative Damping and Enhancement of Second Harmonic Generation in Bull’s Eye Nanoresonators

Jue-Min Yi, Vladimir Smirnov, Xianji Piao, Jiho Hong, Heiko Kollmann, Martin Silies, Wei Wang, Petra Groß, Ralf Vogelgesang, Namkyoo Park, and Christoph Lienau

ACS Nano, vol. 10, no. 1, pp. 475-483, January 2016

134. Spectral separation of optical spin based on antisymmetric Fano resonances

Xianji Piao, Sunkyu Yu, Jiho Hong, and Namkyoo Park

Scientific Reports, vol. 5, no. 16585, November 2015

133. Bloch-like waves in random-walk potentials based on supersymmetry

Sunkyu Yu, Xianji Piao, Jiho Hong, and Namkyoo Park

Nature Communications, vol. 6, no. 8269, September 2015

132. One-way optical modal transition based on causality in momentum space

Sunkyu Yu, Xianji Piao, KyungWan Yoo, Jonghwa Shin, and Namkyoo Park

Optics Express, vol. 23, no 19, pp. 24997-25008, September 2015

131. A Vanadium Dioxide Metamaterial Disengaged from Insulator-to-Metal Transition

Young-Gyun Jeong†, Sanghoon Han†, Jiyeah Rhie, Ji-Soo Kyoung, Jae-Wook Choi, Namkyoo Park, Seunghun Hong, Bong-Jun Kim, Hyun-Tak Kim, and Dai-Sik Kim

Nano Letters, vol. 15, no. 10, pp. 6318-6323, October 2015

130. Selective electric and magnetic sensitivity of aperture probes

Dilip K. Singh, Jae Sung Ahn, Sukmo Koo, Taehee Kang, Joonyeon Kim, Sukho Lee, Namkyoo Park, and Dai-Sik Kim

Optics Express, vol. 23, no. 16, pp. 20820-20828, August 2015

129. Progress toward high-Q perfect absorption: A Fano antilaser

Sunkyu Yu†, Xianji Piao†, Jiho Hong, and Namkyoo Park

Physical Review A, vol. 92, no. 1, pp. 011802(R), July 2015

128. Enhanced Light Trapping and Power Conversion Efficiency in Ultrathin Plasmonic Organic Solar Cells: A Coupled Optical-Electrical Multi-physics Study on the Effect of Nanoparticle Geometry

Sungjun In, Daniel Riordean Mason, Hyunho Lee, Mi Jung, Changhee Lee, and Namkyoo Park

ACS Photonics, vol. 2, no. 1, pp. 78-85, January 2015

127. Theoretical Study on the Generation of a Low-noise Plasmonic Hotspot by Means of a Trench-assisted Circular Nano-slit

Hyuntai Kim, Seung-Yeol Lee, Sukmo Koo, Jinseob Kim, Kyoungyoon Park, Dongyeul Lee, Luis Alonso Vazquez-Zuniga, Namkyoo Park, Byoungho Lee, and Yoonchan Jeong

Optics Express, vol. 22, no. 22, pp. 26844-26853, November 2014

126. Towards Plasmonics with Nanometer Precision: Nonlinear Optics of Helium-Ion Milled Gold Nanoantennas

Heiko Kollmann, Xianji Piao, Martin Esmann, Simon Becker, Dongchao Hou, Chuong Huynh, Lars-Oliver Kautschor, Guido Boesker, Henning Vieker, Andre Beyer, Armin Golzhauser, Namkyoo Park, Ralf Vogelgesang, Martin Silies, and Christoph Lienau

Nano Letters, vol. 14, no. 8, pp. 4778-4784, July 2014

125. Embedding metal electrodes in thick active layers for ITO-free plasmonic organic solar cells with improved performance

Sangjun Lee, Daniel R. Mason, Sungjun In and Namkyoo Park

Optics Express, vol. 22, no. S4, pp. A1145-A1152, June 2014

124. Hot-spots Engineered 3D Multipetal Flower Assemblies for Surface-Enhanced Raman Spectroscopy

Kinam Jung†, Jungsuk Hahn†, Sungjun In†, Yongjun Bae, Heechul Lee, Peter V. Pikhitsa, Kwangjun Ahn, Kyungyeon Ha, Jong-Kwon Lee, Namkyoo Park and Mansoo Choi

Advanced Materials (cover paper), vol. 26, iss. 34, pp. 5924-5929, September 2014

123. Plasmonic Excitations of 1D Metal-Dielectric Interfaces in 2D Systems: 1D Surface Plasmon Polaritons

Daniel R. Mason†, Sergey G. Menabde†, Sunkyu Yu, Namkyoo Park

Scientific Reports, vol 4, no. 4536, April 2014

122. Unusual Otto Excitation Dynamics and Enhanced Coupling of Light to TE Plasmons in Graphene

Daniel R. Mason†, Sergey G. Menabde†, and Namkyoo Park

Optics Express, vol. 22, no. 1, pp. 847-858, January 2014

121. Wave Front Adaptation Using a Deformable Mirror for Adiabatic Nanofocusing Along an Ultrasharp Gold Taper (Invited Paper)

Slawa Schmidt, Pascal Engelke, Bjorn Piglosiewicz, Martin Esmann, Simon F. Becker, Kyungwan Yoo, Namkyoo Park, Christoph Lienau, and Petra Groß

Optics Express, vol. 21, no. 22, pp. 26564-26577, November 2013

120. Focus Issue on Surface Plasmon Photonics Introduction (Invited Paper)

Pierre Berini, Alexandre Bouhelier, Javier Garcia de Abajo, and Namkyoo Park

Optics Express, vol. 21, no. 22, pp. 27286-27290, November 2013

119. Atomic Layer Lithography of Wafer-Scale Nanogap Arrays for Extreme Confinement of Electromagnetic Waves

Xiaoshu Chen, Hyeong-Ryeol Park, Matthew Pelton, Xianji Piao, Nathan C. Lindquist, HyungSoon Im,

Yun Jung Kim, Jae Sung Ahn, Kwang Jun Ahn, Namkyoo park, Dai-Sik Kim, and Sang-Hyun Oh

Nature Communications, vol. 4, no. 2361, September 2013

118. Phase-Dependent Reversible Non-reciprocity in Complex Meta-molecules

Sunkyu Yu, Daniel R. Mason, Xianji Piao, and Namkyoo Park

Physical Review B, vol. 87, no. 12, pp. 125143, March 2013

117. Optical Magnetic Field Mapping Using a Subwavelength Aperture

Hyun Woo Kihm, Jineun Kim, Sukmo Koo, Jaesung Ahn, Kwangjun Ahn, Kwanggeol Lee, Namkyoo Park, and Dai-Sik Kim

Optics Express, vol. 21, no. 5, pp. 5625-5633, March 2013

116. Colossal Absorption of Molecules Inside Single Terahertz Nanoantennas

Hyeong-Ryeol Park, Kwang Jun Ahn, Sanghoon Han, Young-Mi Bahk, Namkyoo Park, and Dai-Sik Kim

Nano Letters, vol. 13, no. 4, pp. 1782-1786, February 2013

115. Incorporation of Nanovoids into Metallic Gratings for Broadband Plasmonic Organic Solar Cells

Sangjun Lee, SungJun In, Daniel R. Mason, and Namkyoo Park

Optics Express, vol. 21, no. 4, pp. 4055-4060, February 2013

114. Plasmonic Structural-Color Thin Film with a Wide Reception Angle and Strong Retro-Reflectivity

Inchul Woo, Sunkyu Yu, Jae Sung Lee, Jung H. Shin, Mi Jung, and Namkyoo Park

IEEE Photonics Journal, vol. 4, no. 6, pp. 2182-2188, December 2012

113. Spatiospectral Separation of Exceptional Points in PT-Symmetric Optical Potentials

Sunkyu Yu, Xianji Piao, Daniel R. Mason, Sungjun In, and Namkyoo Park

Physical Review A, vol. 86, no. 3, pp. 031802(R), September 2012

112. Control of Fano Asymmetry in Plasmon Induced Transparency and its Application to Plasmonic Waveguide Modulator

Xianji Piao, Sunkyu Yu, and Namkyoo Park

Optics Express , vol. 20, no. 17, pp. 18994-18999, August 2012

111. Nanofocusing on Ultrasmooth Single-Crystalline Gold Tapers Creates a 10-nm Light Source with Few-Cycle Time Resolution

Slawa Schmidt, Bjoun Piglosiewicz, Diyar Sadiq, Javid Shirdel, Jae Sung Lee, Parinda Vasa, Namkyoo Park, Dai-Sik Kim, and Christoph Lienau

ACS Nano, vol. 6, no. 7, pp. 6040-6048, June 2012

110. Effect of Index Contrasts in the Wide Spectral-Range Control of Slot Waveguide Dispersion

Hyungsuk Ryu, Jaehun Kim, Young Min Jhon, Seok Lee, and Namkyoo Park

Optics Express, vol. 20, no. 12, pp. 13189-13194, May 2012

109. Flexible, Angle-Independent Structural Color Reflectors Inspired by Morpho Butterfly Wings

Kyungjae Chung†, Sunkyu Yu†, Chul-Joon Heo, Jae Won Shim, Seung-Man Yang, Moon Gyu Han, Hong-Seok Lee, Yongwan Jin, SangYoon Lee, Namkyoo Park, and Jung H. Shin

Advanced Materials (cover paper, also featured in Research Highlight of Nature), vol. 24, iss. 18, pp. 2375-2379, April 2012

108. Slow-Light Dispersion Properties of Multiatomic Multiband Coupled Resonator Optical Waveguides

Sunkyu Yu, Xianji Piao, and Namkyoo Park

Physical Review A, vol. 85, iss. 2, pp. 023823, February 2012

107. Mode Junction Photonics with a Symmetry-Breaking Arrangement of Mode-Orthogonal Heterostructures

Sunkyu Yu, Xianji Piao, Sukmo Koo, Jung H. Shin, Seung Hoon Lee, Bumki Min, and Namkyoo Park

Optics Express, vol. 19, no. 25, pp. 25500-25511, December 2011

106. Terahertz Pinch Harmonics Enabled by Single Nano Rods

Hyeong-Ryeol Park, Young-Mi Bahk, Jong Ho Choe, Sanghoon Han, Seong Soo Choi, Kwang Jun Ahn, Namkyoo Park, Q-Han Park, Dai-Sik Kim

Optics Express, vol. 19 , no. 24, pp. 24775-24781, November 2011

105. Fabrication and Analysis of Epitaxially Grown Ge_(1-x) Sn_(x) Microdisk Resonator with 20-nm Free-Spectral Range

Seongjae Cho, Robert Chen, Sukmo Koo, Gary Shambat, Hai Lin, Namkyoo Park, Jelena Vuckovic Theodore I. Kamins, Byung-Gook Park, and James S. Harris, Jr.

IEEE Photonics Techology Letters, vol. 23, no. 20, pp. 1535-1537, October 2011

104. Bethe-Hole Polarization Analyser for the Magnetic Vector of Light

H.W. Kihm, S.M. Koo, Q.H. Kim, K. Bao, J.E. Kihm, W.S. Bak, S.H. Eah, C. Lienau, H. Kim, P. Nordlander, N.J. Halas, N.K. Park & D.-S. Kim

Nature Communications, vol. 2, no. 451, August 2011

103. Superfocusing of Electric or Magnetic Fields using Conical Metal Tips : Effect of Mode Symmetry on the Plasmon Excitation

Jae Sung Lee, Sanghoon Han, Javid Shirdel, Sukmo Koo, Diyar Sadiq, Christoph Lienau, and Namkyoo Park

Optics Express, vol. 19, no. 13, pp. 12342-12347, June 2011

102. Fano-Type Spectral Asymmetry and its Control for Plasmonic Metal-Insulator-Metal Stub Structures

Xianji Piao, Sunkyu Yu, Sukmo Koo, Kwanghee Lee, and Namkyoo Park

Optics Express, vol. 19, no. 11, pp. 10907-109011, May 2011

101. Adiabatic Nanofocusing Scattering-Type Optical Nanoscopy of Individual Gold Nanoparticles

Diyar Sadiq, Javid Shirdel, Jae Sung Lee, Elena Selishcheva, Namkyoo Park, and Christoph Lienau

Nano Letters, vol. 11, no. 4, pp. 1609-1613, March 2011

100. A Terahertz Metamaterial with Unnaturally High Refractive Index

Muhan Choi, Seung Hoon Lee, Yushin Kim, Seung Beom Kang, Jonghwa Shin, Min Hwan Kwak, Kwang-Young Kang, Yong-Hee Lee, Namkyoo Park, and Bumki Min

Nature, vol. 470, pp. 369-373, February 2011

99. Surface Plasmon Beam Splitting by the Photon Tunneling between the Plasmonic Nanogap

Seung-Yeol Lee, Junghyun Park, Inchul Woo, Namkyoo Park, and Byoungho Lee

Applied Physics Letters, vol. 97, no. 13, pp. 133113, September 2010

98. Giant Nonlinear Response of Terahertz Nanoresonators on VO2 Thin Film

Jisoo Kyoung, Minah Seo, Hyeongryeol Park, Sukmo Koo, Hyun-sun Kim, Youngmi Park, Bong Jun Kim, Kwangjun Ahn, Namkyoo Park, Hyun-Tak Kim, and Dai-Sik Kim

Optics Express, vol. 18, no. 16, pp. 16452-16459, July 2010

97. Active Terahertz Nanoantennas Based on VO2 Phase Transition

Minah Seo, Jisoo Kyoung, Hyeongryeol Park, Sukmo Koo, Hyun-sun Kim, Hannes Bernien, Bong Jun Kim, Jong Ho Choe, Yeong Hwan Ahn, Hyun-Tak Kim, Namkyoo Park, Q-Han Park, Kwangjun Ahn, and Dai-sik Kim

Nano Letters, vol. 10, no. 6, pp. 2064-2068, May 2010

96. Resonance Behavior of Single Ultrathin Slot Antennas on Finite Dielectric Substrates in Terahertz Regime

H. R. Park, S. M. Koo, O. K. Suwal, Y. M. Park, J. S. Kyoung, M. A. Seo, S. S. Choi, N. K. Park, D. S. Kim, and K. J. Ahn

Applied Physics Letters, vol. 96, no. 21, pp. 211109, May 2010

95. Low-Loss Surface-Plasmonic Nanobeam Cavities

Myung-Ki Kim, Seung Hoon Lee, Muhan Choi, Byeong-Hyeon Ahn, Namkyoo Park, Yong-Hee Lee, and Bumki Min

Optics Express, vol. 18, no. 11, pp. 11089-11096, May 2010

94. Out of Plane Mode Conversion and Manipulation of Surface Plasmon Polariton Waves

M. Sathish Kumar, Xianji Piao, Sukmo Koo, Sunkyu Yu, and Namkyoo Park

Optics Express, vol. 18, no. 9, pp. 8800-8805, April 2010

93. Cooperative Upconversion and Optical Gain in Ion-Beam Sputter-Deposited ErxY2-xSiO5 Waveguides

Kiseok Suh, Minkyung Lee, Jee Soo Chang, Hansuek Lee, Namkyoo Park, Gun Yong Sung, and Jung H. Shin

Optics Express, vol. 18, no. 8, pp. 7724-7731, April 2010

92. Differential Monitoring of AWG-Filtered Reflection Signal for Transmitter Power Control of Injection-Locked WDM PON Systems

Kyoungmin Kim, Jae-Oh Byun, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 22, no. 7, pp. 477-479, April 2010

91. Directional Emission from Photonic Crystal Waveguide Terminations using Particle Swarm Optimization

M. Sathish Kumar, Sergey Menabde, Sunkyu Yu, and Namkyoo Park

J. Opt. Soc. Am B, vol. 27, no. 2, pp. 343-349, February, 2010

90. Extraordinary Magnetic Field Enhancement with Metallic Nanowire :
Role of Surface Impedance in Babinet’s Principle for Sub-Skin-Depth Regime

Sukmo Koo, M. Sathish Kumar, Jonghwa Shin, DaiSik Kim, and Namkyoo Park

Physical Review Letters, vol. 103, no. 26, pp. 263901, December 2009

89. Design of All-optical Read Only Memory

Young Jin Jung, Namkyoo Park, Young Min Jhon and Seok Lee

Applied Optics, vol. 48, no. 31, pp. G21-G27, November 2009

88. Metal Slit Array Fresnel Lens for Wavelength-Scale Optical Coupling to Nanophotonic Waveguides

Young Jin Jung, Dongwon Park, Sukmo Koo, Sunkyu Yu, and Namkyoo Park

Optics Express, vol. 17, no. 21, pp. 18852-18857, October 2009

87. Terahertz Field Enhancement by a Metallic Nano Slit Operating beyond the Skin-Depth Limit

M. A. Seo, H. R. Park, S. M. Koo, D. J. Park, J. H. Kang, O. K. Suwal, S. S. Choi, P. C. M. Planken, G. S. Park, N. K. Park, Q. H. Park, and D. S. Kim

Nature Photonics, vol. 3, no. 3, pp. 152-156, March 2009

86. Statistical Correlation and Independence among Parallel Outputs from Delay-Interferometer based Direct Detection Multilevel Optical DPSK Receivers

M. Sathish Kumar, Hosung Yoon, and Namkyoo Park

Optical Fiber Technology, vol. 15, no. 1, pp. 50-56, January 2009

85. Performance Comparison of Delay-Interferometer based Direct Detection oDOPSK Receivers

M. Sathish Kumar, Hosung Yoon, and Namkyoo Park

Optics Express, vol. 16, no. 23, pp. 18776-18781, October 2008

84. Coded Output Photonic A/D Converter based on Photonic Crystal Slow-Light Structures

Sunkyu Yu, Sukmo Koo, and Namkyoo Park

Optics Express, vol. 16, no 18, pp. 13752-13757, September 2008

83. One-Level Simplification Method for All-optical Combinational Logic Circuits

Young Jin Jung, Chang Wan Son, Young Min Jhon, Seok Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 20, no. 10, pp. 800-802, May 2008

82. Demonstration of 10Gbps, All-optical Encryption and Decryption System Utilizing SOA XOR Logic Gates

Young Jin Jung, Chang Wan Son, Seok Lee, Sangkeun Gil, Hyung Seok Kim, and Namkyoo Park

Optical and Quantum Electronics, vol. 40, iss. 5-6, pp. 425-430, April 2008

81. Semi-Empirical Multi-Port Lattice Model for LPFG Analysis under Arbitrary Temperature Distributions

Junkye Bae, Namkyoo Park, Jinho Bae, Dongyeon Koh, Sang Hyuck Kim, and Sang Bae Lee

Optics Express, vol. 16, no. 2, pp. 598-696, January 2008

80. Analysis of Distributed Temperature Sensing based on Raman Scattering using OTDR Coding and Discrete Raman Amplification (Special issue on OFS18)

Gabriele Bolognini, Jonghan Park, Andrea Chiuchiarelli, Namkyoo Park, and Fabrizio Di Pasquale

Measurement Science and Technology, vol. 18, no. 10, pp. 3211-3218, September 2007

79. Performance Evaluation of Trellis Code Modulated oDQPSK using KLSE Method

M. Sathish Kumar, Hosung Yoon, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 19, no. 16, pp. 1245-1247, August 2007

78. Optofluidic Maskless Lithography System for Real-Time Synthesis of Photopolymerized Microstructures in Microfluidic Channels

Su Eun Chung, Wook Park, Hyunsung Park, Kyoungsik Yu, Namkyoo Park, and Sunghoon Kwon

Applied Physics Letters, vol. 91, no. 4, pp. 041106, July 2007

77. In-Service Monitoring of 16 Port x 32 Wavelength Bi-Directional WDM-PON Systems with a Tunable, Coded OTDR

Jeonghwan Lee, Jonghan Park, Jae Gwang Shim, Hosung Yoon, Jin Hee Kim, Kyoungmin Kim, Jae-Oh Byun, and Namkyoo Park

Optics Express, vol. 15, no. 11, pp. 6874-6882, May 2007

76. Wavelength-Transparent Nonlinear Optical Gate based on Self-Seeded Gain Modulation in Folded Tandem-SOA

Young Jin Jung, Jonghan Park, and Namkyoo Park

Optics Express, vol. 15, no 8, pp. 4929-4934, April 2007

75. Superresolution Digital Image Enhancement by Subpixel Image Translation with a Scanning Micromirror

(Special issue on Optical Micro-Nano Systems Issue)

Kyoungsik Yu, Namkyoo Park, Daesung Lee, and Olav Solgaard

IEEE Journal on Selected Topics in Quantum Electronics, vol. 13, no. 2, pp. 304-311, March 2007

74. Tunable Optical Bandpass Filter with Variable-Aperture MEMS Reflector

Kyoungsik Yu, Daesung Lee, Namkyoo Park, and Olav Solgaard

IEEE Journal of Lightwave Technology, vol. 24, no. 12, pp. 5095-5102, December 2006

73. Raman-based Distributed Temperature Sensor with Simplex Coding and Link Optimization

Jonghan Park, G. Bolognini, Duckey Lee, Pilhan Kim, Pilki Cho, F. D. Pasquale, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 18, no. 17, pp. 1879-1881, September 2006

72. Micromachined Fourier Transform Spectrometer on Silicon Optical Bench Platform

Kyoungsik Yu, Daesung Lee, Uma Krishnamoorthy, Namkyoo Park, and Olav Solgaard

Sensors and Actuators A: Physical, vol. 130-131, pp. 523-530, August 2006

71. Si Nanocluster Sensitization of Er-Doped Silica for Optical Amplet using Top-Pumping Visible LEDs

(Invited Paper, Special issue on Silicon Photonics)

Jung H. Shin, Jinku Lee, Hak-seung Han, Ji-Hong Jhe, Se-Young Seo , Hansuek Lee, and Namkyoo Park

IEEE Journal of Selected Topics in Quantum Electronics, vol. 12, no. 4, pp. 783-796, July/August 2006

70. Synthesis Method based on Optimization Techniques for Designing Piecewise-Uniform Long-Period Fiber Gratings Controlled by Thermal Changes

Jinho Bae, Jun Kye Bae, Sang Hyuck Kim, Sang Bae Lee, Joohwan Chun, and Namkyoo Park

Journal of the Optical Society of America B, vol. 23, iss. 7, pp. 1241-1249, July 2006

69. Gain and Noise Figure Spectrum Control Algorithm for Fiber Raman Amplifiers

Jaehyoung Park, Jonghan Park, Pilhan Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 18, no. 10, pp. 1125-1127, May 2006

68. Nonlinear Phase Shift Scanning Method for the Optimal Design of Raman Transmission Systems

Jonghan Park, Jaehyoung Park, Duckey Lee, Na Young Kim, Hansuek Lee, and Namkyoo Park

IEEE Journal of Lightwave Technology, vol. 24, no. 3, pp. 1257-1268, March 2006

67. Integral Equation Approach for the Analysis of High-Power Semiconductor Optical Amplifier

Young Jin Jung, Pilhan Kim, Jaehyoung Park, and Namkyoo Park

Optics Express, vol. 14, no. 6, pp. 2398-2403, March 2006

66. Optimization of SNR Improvement in the Noncoherent OTDR based on Simplex Codes

Duckey Lee, Hosung Yoon, Pilhan Kim, Jonghan Park, and Namkyoo Park

IEEE Journal of Lightwave Technology, vol. 24, no. 1, pp. 322-328, January 2006

65. Study on the PMD Impairment of Optical Multilevel DPSK Systems and Its Mitigation Methods

Hosung Yoon, Na Young Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 17, no. 12, pp. 2577-2579, December 2005

64. Performance Analysis of Nanocluster-Si Sensitized Er-Doped Waveguide Amplifier using Top-Pumped 470nm LED

Hansuek Lee, Jung H. Shin, and Namkyoo Park

Optics Express, vol. 13, no. 24, pp. 9881-9889, November 2005

63. High Performance Discrete Amplifier based on a Second Order Fiber Raman Oscillator

Stefano Faralli, Pilhan Kim, Claudia Cantini, Gabriele Bolognini, Giovanni Sacchi, Namkyoo Park, and Fabrizio Di Pasquale

IEEE Photonics Technology Letters, vol. 17, no. 11, pp. 2298-2300, November 2005

62. Dynamic EDFA Gain Flattening Filter using two LPFGs with Divided Coil Heaters

Jun Kye Bae, Jinho Bae, Sang Hyuck Kim, Namkyoo Park, and Sang Bae Lee

IEEE Photonics Technology Letters, vol. 17, no. 6, pp. 1226-1228, June 2005

61. Integral Form Expansion of Fiber Raman Amplifier Problem (Invited Paper)

Namkyoo Park, Pilhan Kim, Jaehyoung Park, and Lark Kwon Choi

Optical Fiber Technology, vol 11, iss. 4, pp. 111-130, April 2005

60. Semianalytic Dynamic Gain Clamping Method for the Fiber Raman Amplifier

Pilhan Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 17, no. 4, pp. 768-770, April 2005

59. Independently Tunable First and Second Order Polarization-Mode Dispersion Emulator

Na Young Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 17, no. 3, pp. 576-578, March 2005

58. Performance Comparison of Optical 8-ary Differential Phase-Shift Keying Systems with Different Electrical Decision Schemes

Hosung Yoon, Duckey Lee, and Namkyoo Park

Optics Express, vol. 13, no. 2, pp. 371-376, January 2005

57. Adiabatic, Closed Form Approach for the Highly Efficient Analysis of Fiber Raman Amplifier Problem

Lark Kwon Choi, Pilhan Kim, Jaehyoung Park, Jonghan Park, and Namkyoo Park

Optics Letters, vol. 30, no. 2, pp. 126-128, January 2005

56. Optical Gain at 1.5um in Nanocrystal Si-Sensitized Er-Doped Silica Waveguide Using Top-Pumping 470nm LEDs

Jinku Lee, Jung H. Shin, and Namkyoo Park

IEEE Journal of Lightwave Technology, vol. 23, no. 1, pp. 19-25, January 2005

55. SNR Enhancement of OTDR Using Biorthogonal Codes and Generalized Inverses

Duckey Lee, Hosung Yoon, Pilhan Kim, Jonghan Park, Na Young Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 17, no. 1, pp. 163-165, January 2005

54. Closed Integral Form Expansion of Raman Equation for Efficient Gain Optimization Process

Jaehyoung Park, Pilhan Kim, Jonghan Park, Hansuek Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 16, no. 7, pp. 1649-1651, July 2004

53. Determination of Back-Scatter Coefficient from Third Order Rayleigh Effect in a Raman Amplifier

Jonghan Park, Na Young Kim, Wonsub Choi, Hansuek Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 16, no. 6, pp. 1459-1461, June 2004

52. Comparisons on PMD-Compensation Feedback Methods for Bandwidth-Rich Transmission Formats

Na Young Kim, Duckey Lee, Jonghan Park, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 16, no. 6, pp. 1597-1599, June 2004

51. Structural Detuning of Absorption Rate in Doped Fiber for the Enhancement of Power Efficiency

Hansuek Lee, Wonsub Choi, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 16, no. 6, pp. 1468-1470, June 2004

50. S/S+ Band Tunable Thulium-Doped Fiber Laser Anchored on 50-GHz ITU-T Grid

Seong Joon Ahn, Jonghan Park, Hosung Seo, and Namkyoo Park

Optics Communications, vol. 233, iss. 1-3, pp. 127-130, March 2004

49. Widely Tunable S/S+ Band Thulium-Doped Fiber Laser Locked to 50-GHz ITU-T Grid

Jonghan Park, Seong Joon Ahn, Won Jae Lee, Jeonghwan Lee, Ho Suhng Suh, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 16, no. 2, pp. 404-406, February 2004

48. Erbium-Thulium Interaction in Broadband Infrared Luminescent Silicon-Rich Silicon Oxide

Se-young Seo, Jung H. Shin, Byeong-soo Bae, Namkyoo Park, J.J. Penninkhof, and A. Polman

Applied Physics Letters, vol. 82, no. 20, pp. 3445-3447, May 2003

47. In-Situ Design Method for Multi-channel Gain of Distributed Raman Amplifier with the Multi-wave OTDR

Pilhan Kim, Jaehyoung Park, Hosung Yoon, Jonghan Park, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 14, no. 12, pp. 1683-1685, December 2002

46. Coefficient Determination Related to Optical Gain in Erbium-Doped Silicon-Rich Silicon Oxide Waveguide Amplifier

Hak-Seung Han, Se-Young Seo, Jung H. Shin, and Namkyoo Park

Applied Physics Letters, vol. 81, no. 20, pp. 3720-3722, November 2002

45. Analysis on the Transient Response of 1.4um/1.5um Dual Wavelength Pumped Thulium Doped Fiber Amplifiers

Jae-Oh Byun, Pilhan Kim, Won Jae Lee, Choong Hee Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 14, no. 11, pp. 1503-1505, November 2002

44. Study on the Gain Excursion & Tilt Compensation for 1.4/1.5 um Dual Wavelength Pumped TDFA

Won Jae Lee, Choong Hee Lee, Pilhan Kim, Jae-Oh Byun, Jonghan Park, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 14, no. 6, pp. 786-788, June 2002

43. Bidirectional Wavelength Add/Drop Multiplexer using Two Separate MUX and DEMUX Pairs and Reflection-type Comb Filters

Jungho Kim, Jaehyoung Park, Seunghwan Chung, Namkyoo Park, Byoungho Lee, and Kitae Jeong

Optics Communications, vol. 205, no.4-6, pp. 321-327, May 2002

42. Novel In-Service Supervisory Scheme for the Amplified WDM Link with Modified Optical Time Domain Reflectometry

Pilhan Kim, Hosung Yoon, Jae-eun Seo, Kitae Jeong, Ki-Won Ryoo, Kyu-Haeng Lee, and Namkyoo Park

Optical Fiber Technology, vol. 8, no. 2, pp. 139-145, April 2002

41. Dynamics of Cascaded Brillouin/Rayleigh Scattering Process in Distributed Fiber Raman Amplifier

Kap-Dong Park, Bumki Min, Pilhan Kim, Namkyoo Park, Jai-Hyung Lee, and Joon-Sung Chang

Optics Letters, vol. 27, no. 3, pp. 155-157, February 2002

40. Limitation of PMD Compensation Due to Polarization Dependent Loss in High Speed Optical Transmission Link

Na Young Kim, Duckey Lee, Hosung Yoon, Jaehyoung Park, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 14, no. 1, pp. 104-106, January 2002

39. Flat Amplitude, Equal Spacing 798-Channel Rayleigh assisted Brillouin/Raman Multi-wavelength Comb Generation in Dispersion Compensating Fiber

Bumki Min, Pilhan Kim, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 13, no. 12, pp. 1352-1354, December 2001

38. Novel In-Service Supervisory System using OTDR for Long-Haul WDM Transmission Link Including Cascaded In-Line EDFAs

Pilhan Kim, Hosung Yoon, Jae-eun Seo, Kitae Jeong, Ki-Won Ryoo, Kyu-Haeng Lee and Namkyoo Park

IEEE Photonics Technology Letters, vol. 13, no. 10, pp. 1136-1138, October 2001

37. Polarization-Mode-Dispersion Compensator using a Polarization Beam Splitter and Quarter-Wave Plates

Jung Ho. Kim, Hosung Yoon, Namkyoo Park, and Byoungho Lee

Applied Optics, vol 40, no. 25, pp. 4473-4475, October 2001

36. Efficient Formulation of Raman Amplifier Propagation Equations with Average Power Analysis

Bumki Min, Won Jae Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 12, no. 11, pp. 1486-1488, November 2000

35. Analysis on the Channel Power Oscillation in the Closed WDM Ring Network with the Channel Power Equalizer

Pilhan Kim, Sungho Bae, Seong Joon Ahn and Namkyoo Park

IEEE Photonics Technology Letters, vol. 12, no. 10, pp. 1409-1411, October 2000

34. Link-Control Gain Clamping for a Cascaded EDFAs Link using Differential ASE Monitor

Hosung Yoon, Jaehyoung Park, Seong Joon Ahn, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 12, no. 10, pp. 1334-1336, October 2000

33. Wavelength-Time Spreading Optical CDMA System Using Wavelength Multiplexers and Mirrored Fiber Delay Lines

Kyoungsik Yu, Jongyoon Shin, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 12, no. 9, pp. 1278-1280, September 2000

32. Coupled Structure for Wideband EDFA with Gain and Noise Figure Improvements from C to L-Band ASE Injection

Bumki Min, Hosung Yoon, Won Jae Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol 12, no. 5, pp. 480-482, May 2000

31. A New Family of Space/Wavelength/Time Spread Three Dimensional Optical Code for OCDMA Networks

Sangin Kim, Kyoungsik Yu, and Namkyoo Park

Journal of Lightwave Technology, vol. 18, no. 4, pp. 502-511, April 2000

30. Simultaneous Measurement of Strain and Temperature by Single Fiber Bragg Grating Written in an Erbium:Ytterbium-Doped Fiber

Jae Hoon Jung, Namkyoo Park, and Byoungho Lee

Applied Optics, vol. 39, no. 7, pp. 1118-1120, March 2000

29. Demonstration of 52 nm Gain Bandwidth over 2400 km (540 dB Loss) with Gain-Equalized, Low Noise Wideband EDFAs

Hee Sang Chung, Hyun Beom Choi, Mun Seob Lee, Donghan Lee, Namkyoo Park, and Seong Joon Ahn

Photonics Technology Letters, vol. 12, no. 3, pp. 329-331, March 2000

28. Low Noise, High Efficiency L-band EDFA with 980 nm Pumping

Hee Sang Chung, Myung Suk Lee, Donghan Lee, Namkyoo Park, and David DiGiovanni

Electronics Letters, vol. 35, no. 13, pp. 1099-1100, June 1999

27. Simultaneous Measurement of Strain and Temperature using a Single Fiber Bragg Grating and an Erbium-Doped Fiber Amplifier

Jaehoon Jung, Hui Nam, Namkyoo Park, and Byoungho Lee

OSA Applied Optics, vol. 38, no. 13, pp. 2749-2751, May 1999

26. Design of a New Family of Two-Dimensional Wavelength-Time Spreading Codes for Optical Code Division Multiple Access

Kyoungsik Yu, and Namkyoo Park

Electronics Letters, vol. 35, no. 10, pp. 830-831, March 1999

25. Reference Free Multichannel Gain Equalization and Transient Gain Suppression of EDFA with Differential ASE Power Monitoring

Hosung Yoon, Sungho Bae, Seong Joon Ahn, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 11, no. 3, pp. 316-318, March 1999

24. Passive EDF - Seed Photon Generator for High Power Er3+ Doped Fiber Fluorescent Source with 80nm Bandwidth

Ju Han Lee, Uh-chan Ryu, and Namkyoo Park

OSA Optics Letters, vol. 24, no. 5, pp. 279-281, March 1999

23. Enhancement of Power Conversion Efficiency for an L-Band EDFA with a Secondary Pumping Effect in the Unpumped EDF

Ju Han Lee, Uh-chan Ryu, Seong Joon Ahn, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 11, no. 1, pp. 42-44, January 1999

22. Study on Temperature Dependent Multi-Channel Gain and Noise Figure Distortion for 1.48mm and 0.98mm Pumped EDFAs

Ju Han Lee, Won Jae Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 10, no. 12, pp. 1721-1723, December 1998

21. Reduction of Temperature Dependent Multi-channel Gain Distortion Using a Hybrid Erbium Doped Fiber Cascade

Ju Han Lee, and Namkyoo Park

IEEE Photonics Technology Letters, vol. 10, no. 8, pp. 1168-1170, August 1998

20. Actively Gain Flattened Erbium Doped Amplifier over 35nm by Using All-Fiber Acoustooptic Tunable Filters

Hyo Sang Kim, Seok Hyun Yun, Hyang Kyun Kim, Namkyoo Park, and Byoung Yoon Kim

IEEE Photonics Technology Letters, vol. 10, no. 6, pp. 790-792, June 1998

19. 24-line Multiwavelength Operation of Erbium-Doped Fiber-Ring Laser

Namkyoo Park, and Paul F. Wysocki

IEEE Photonics Technology Letters, vol. 8, no. 11, pp. 1459-1461, November 1996

18. Dual-Stage Erbium-doped, Erbium/Ytterbium-Codoped Fiber Amplifier with upto 26dBm Output Power and a 17nm Flat Spectrum

Paul F. Wysocki, and Namkyoo Park

OSA Optics Letters, vol. 21, no. 21, pp. 1744-1746, November 1996

17. High Power Er-Yb Doped Fiber Amplifier with Multichannel Gain Flatness within 0.2dB over 14nm

Namkyoo Park, Paul F. Wysocki, Renee Pedrazzani, Steve G. Grubb, David J. DiGiovanni, and Kenneth L. Walker

IEEE Photonics Technology Letters, vol. 8, no. 9, pp. 1148-1150, September 1996

16. High Power Er-Yb Linear Optical Fiber Amplifier for CATV application with Gain Tilt Window over 11nm and Integrated Dispersion Pre-compensation

Namkyoo Park, Torben N. Nielsen, Jay R. Simpson, Paul F. Wysocki, Renee Pedrazzani, David J. DiGiovanni, Steve G. Grubb, and Kenneth L. Walker

Electronics Letters, vol. 32, no. 10, pp. 913-915, May 1996

15. Study of Inter-Well Carrier Transport by Terahertz Four-Wave Mixing in an Optical Amplifier with Tensile and Compressively Strained Quantum Wells

Jianhui Zhou, Namkyoo Park, Kerry J. Vahala, Michael A. Newkirk and Barry I. Miller

Applied Physics Letters, vol. 65, no. 15, pp. 1897-1899, October 1994

14. Four-Wave Mixing Wavelength Conversion Efficiency in Semiconductor Travelling-Wave Amplifiers to 65 nm of Wavelength Shift

Jianhui Zhou, Namkyoo Park, Kerry J. Vahala, Michael A. Newkirk and Barry I. Miller

IEEE Photonics Technology Letters, vol. 6, no. 8, pp. 984-987, August 1994

13. Broadband Wavelength Conversion with Amplification by Four-Wave Mixing in Semiconductor Travelling-Wave Amplifiers

Jianhui Zhou, Namkyoo Park, Kerry J. Vahala, Michael A. Newkirk and Barry I. Miller

Electronics Letters, vol. 30, no. 11, pp. 859-860, May 1994

12. Efficiency of Broadband Four Wave Mixing Wavelength Conversion Using Semiconductor Traveling-Wave Amplifiers

Jianhui Zhou, Namkyoo Park, Jay W. Dawson, Kerry J. Vahala, Michael A. Newkirk and Barry I. Miller

IEEE Photonics Technology Letters, vol. 6, no. 1, pp. 50-52, January 1994

11. Terahertz Four-Wave Mixing Spectroscopy for Study of Ultrafast Dynamics in a Semiconductor Optical Amplifier

Jianhui Zhou, Namkyoo Park, Jay W. Dawson, Kerry J. Vahala, Michael A. Newkirk and Barry I. Miller

Applied Physics Letters, vol. 63, no. 9, pp. 1179-1181, August 1993

10. Frequency Locking of an Erbium-Doped Fiber Ring Laser to an External Fiber Fabry-Perot Resonator

Namkyoo Park, Jay W. Dawson and Kerry J. Vahala

OSA Optics Letters, vol. 18, no. 11, pp. 879-881, June 1993

9. Highly Nondegenerate Four-Wave Mixing and Gain Nonlinearity in a Strained Multiple Quantum Well Optical Amplifier

Jianhui Zhou, Namkyoo Park, Jay W. Dawson, Kerry J. Vahala, Michael A. Newkirk, Uziel Koren and Barry I. Miller

Applied Physics Letters, vol. 62, no. 19, pp. 2301-2303, May 1993

8. Reduction of the Intensity Noise from an Erbium-Doped Fiber Laser to the Standard Quantum Limit by Intracavity Spectral Filtering

Steve Sanders, Namkyoo Park, Jay W. Dawson and Kerry J. Vahala

Applied Physics Letters, vol. 61, no. 16, pp. 1889-1891, October 1992

7. Linewidth and Frequency Jitter Measurement of an Erbium Doped Fiber Ring Laser by using a Loss-Compensated, Delayed Self-Heterodyne Interferometer

Namkyoo Park, Jay W. Dawson and Kerry J. Vahala

OSA Optics Letters, vol. 17, no. 18, pp. 1274-1276, September 1992

6. An Improved Delayed Self-Heterodyne Interferometer for Linewidth Measurements

Jay W. Dawson, Namkyoo Park and Kerry J. Vahala

IEEE Photonics Technology Letters, vol. 4, no. 9, pp. 1063-1066, September 1992

5. Semiconductor Lasers and Fiber Lasers for Fiber-Optic Telecommunications

Kerry J. Vahala, Namkyoo Park, Jay W. Dawson, Michael A. Newkirk and Steve Sanders

Fiber and Integrated Optics, vol. 11, no. 3, pp. 221-234, July 1992

4. Co-Lasing in an Electronically Tunable Erbium-Doped Fiber Laser

Jay W. Dawson, Namkyoo Park and Kerry J. Vahala

Applied Physics Letters, vol. 60, no. 25, pp. 3090-3092, June 1992

3. Multiple Wavelength Operation of an Erbium-Doped Fiber Laser

Namkyoo Park, Jay W. Dawson and Kerry J. Vahala

IEEE Photonics Technology Letters, vol. 4, no. 6, pp. 540-541, June 1992

2. Measurement of Intensity Noise of a Broadly Tunable, Erbium-Doped Fiber Ring Laser, Relative to the Standard Quantum Limit

Steve Sanders, Jay W. Dawson, Namkyoo Park and Kerry J. Vahala

Applied Physics Letters, vol. 60, no. 21, pp. 2583-2585, May 1992

1. All Fiber, Low Threshold, Widely Tunable, Single-Frequency Er-Doped, Fiber Ring Laser with a Tandem Fiber Fabry-Perot Filter

Namkyoo Park, Jay W.Dawson, Calvin Miller and Kerry J. Vahala

Applied Physics Letters, vol. 59, no. 19, pp. 2369-2371, November 1991