Conferences

International Conferences

[66] Sunkyu Yu & Namkyoo Park. Pruning for U(N) Programmable Photonic Circuits.
Optics, Photonics, and Lasers (OPL-2023), Hiroshima, Japan and Online, 7th December 2023

[65] Kyoungsub Yoon, Sunkyu Yu & Namkyoo Park. Global B1+ field homogenization in 7T whole brain MRI using metasurface.
International Conference on Advanced Materials and Devices 2023, THU-PM23-546, Jeju, Republic of Korea, 7th December 2023

[64] Hyungchul Park, Seungkyun Park, Gyunghun Kim, Namkyoo Park & Sunkyu Yu. Modal Localization in Disordered Hyperbolic Lattices.
Optica Advanced Photonics Congress, NoTh3C.5, Busan, Republic of Korea, 13th July 2023

[63] Gyunghun Kim, Joseph Suh, Ikbeom Lee & Sunkyu Yu. Berry Curvature Engineering in Optical Resonator Networks Using Long-Range Hopping.
Optica Advanced Photonics Congress, NoTh2C.4, Busan, Republic of Korea, 13th July 2023

[62] Dayeong Lee, Hyungchul Park, Seungkyun Park, Namkyoo Park & Sunkyu Yu. Perturbative Design for Quasi-Isospectrality in Multidimensional Photonic Systems.
Optica Advanced Photonics Congress, NoTh2C.3, Busan, Republic of Korea, 13th July 2023

[61] Joseph Suh, Gyunghun Kim, Hyungchul Park & Sunkyu Yu. Topological Photonic Molecule With Time-Varying Modulations.
Optica Advanced Photonics Congress, JTu4A.17, Busan, Republic of Korea, 11th July 2023

[60] Dayeong Lee, Jungmin Kim, Hyungchul Park, Ikbeom Lee, Sunkyu Yu & Namkyoo Park. Design of Correlated Photonic Time Disorder for Unidirectional Scattering.
Optica Advanced Photonics Congress, NoTu3C.4, Busan, Republic of Korea, 11th July 2023

[59] Seungkyun Park, Dayeong Lee, Namkyoo Park, Sunkyu Yu. Supersymmetric Engineering of Short-Range Order in Optical Materials.
FiO LS 2022, FTh1C, Rochester, NY, USA, 20th October 2022

[58] Dayeong Lee, Jungmin Kim, Namkyoo Park & Sunkyu Yu. Molecular Dynamics for Microscopic Analysis of Refractive Index in Amorphous Hafnium Oxides.
FiO LS 2022, FW7C.5, Rochester, NY, USA, 19th October 2022

[57] Jungmin Kim, Seungkyun Park, Dayeong Lee, Sunkyu Yu & Namkyoo Park. Data-Driven Engineering of Active Photonic Disorder.
FiO LS 2022, JW4A.20, Rochester, NY, USA, 19th October 2022

[56] Sunkyu Yu. Engineered Disorder in Time-Varying Systems.
The 6th A3 Metamaterials Forum, MA6, Seoul National University, Seoul, Korea, 27th June 2022
(Invited)

[55] Seou Choi, Namkyoo Park & Sunkyu Yu. Coexistence of Oscillation Quenching States in Nonlinear Parity-Time-Symmetric Systems.
OSA Nonlinear Optics Topical Meeting 2021, NTh1A.8, Virtual, 12th August 2021

[54] Jungmin Kim, Sunkyu Yu & Namkyoo Park. Neural-Network-Based Design of Tunable Multilayer Films.
OSA Advanced Photonics Congress 2021, JW4B.3, Virtual, 28th July 2021

[53] Jungmin Kim, Sunkyu Yu & Namkyoo Park. Design of type-II photonic Dirac cone near Gamma point.
A3 Metamaterials Forum 2019, Sapporo, Japan, August 2019

[52] Choonlae Cho, Sunkyu Yu & Namkyoo Park. Elastic mode converter based on supersymmetric ladders.
META 2019, Lisbon, Portugal, July 2019
(Invited - Prof. Namkyoo Park)

[51] Jungmin Kim, Sunkyu Yu & Namkyoo Park. Classification of deformed photonic Dirac cones.
META 2019, Lisbon, Portugal, July 2019

[50] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Phase Manipulation of Constant-Intensity Waves in Disordered Optical Structures.
Metamaterials 2018, PS-25, Espoo, Finland, August 2018

[49] Sunkyu Yu, Xianji Piao & Namkyoo Park. Independent Manipulation of Amplitude and Phase of Light based on the de Broglie-Bohm Viewpoint.
Metamaterials 2018, A6, Espoo, Finland, August 2018
(Invited - Prof. Namkyoo Park)

[48] Xianji Piao, Sunkyu Yu, Minpyo Lee & Namkyoo Park. Topological Interface between Anisotropic Materials for Transverse Spinning of Light Fields.
Metamaterials 2018, PS-62, Espoo, Finland, August 2018

[47] Sunkyu Yu, Xianji Piao & Namkyoo Park. De Broglie-Bohm Perspective on Optical Material Design.
The Third A3 Metamaterials Forum, I-24, POSTECH, Pohang, Korea, August 2018
(Invited - Dr. Sunkyu Yu)

[46] Xianji Piao, Sunkyu Yu & Namkyoo Park. Topological Interface for Transverse Spinning of Light Fields with Globally Pure Handedness.
The Third A3 Metamaterials Forum, Poster Session, POSTECH, Pohang, Korea, August 2018

[45] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Symmetries in Optical Hamiltonians for Isospectrality.
CLEO-PR 2018, Workshop 6, Hong Kong, August 2018
(Invited - Dr. Sunkyu Yu)

[44] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Multimodal Parity Conversion in Supersymmetric Optical Potentials for Controlling Random Waves.
CLEO 2018, JW2A.110, San Jose, California, USA, May 2018

[43] Kyungwan Yoo, Simon F. Becker, Martin Silies, Sunkyu Yu, Christoph Lienau & Namkyoo Park. Second harmonic Radiation from Rectangular Gold Antenna: Far-field Contributions of Different Nonlinear Polarizations.
CLEO 2018, JTu2A.136, San Jose, California, USA, May 2018

[42] Kyungwan Yoo, Simon F. Becker, Martin Silies, Sunkyu Yu, Christoph Lienau & Namkyoo Park. k-space imaging of quantum mechanical nonlinear polarization sources in second harmonic generation.
Quantum and Topological Nanophotonics Workshop, Singapore, April 2018
(Invited - Prof. Namkyoo Park)

[41] Kyungwan Yoo, Simon F. Becker, Martin Silies, Sunkyu Yu, Christoph Lienau & Namkyoo Park. K-space Resolved Second Harmonic Generation: Measurement and Hydrodynamic Calculation.
QNO 2018, Kuala Lumpur, Malaysia, February 2018
(Invited - Prof. Namkyoo Park)

[40] Sunkyu Yu, Xianji Piao & Namkyoo Park. Correlated metadisorder for deterministic optical eigensystems.
METANANO-2017, Vladivostok, Russia, September 2017
(Invited - Prof. Namkyoo Park)

[39] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Isospectral transformations for disordered photonics.
META 2017, 2A11, Songdo, Incheon, July 2017
(Invited - Dr. Sunkyu Yu)

[38] Xianji Piao, Sunkyu Yu, Minpyo Lee & Namkyoo Park. Fano-resonant excitations of generalized optical spin waves.
META 2017, 1A35, Songdo, Incheon, July 2017
(Invited - Dr. Xianji Piao)

[37] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Lorentz-force picture for controlling optical polarizations in non-Hermitian potentials.
META 2017, 1A28, Songdo, Incheon, July 2017
(Invited - Prof. Namkyoo Park)

[36] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Collective Resonances in Subwavelength Metadisorder Structures.
SPP8, P-07-43, Taipei, Taiwan, May 2017

[35] Xianji Piao, Sunkyu Yu, Sergey G. Menabde & Namkyoo Park. Anisotropic Metamaterials for Controlling Transverse Spin of Light.
SPP8, P-07-45, Taipei, Taiwan, May 2017

[34] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Metadisorder coupled systems for functional wave transport.
iSPN 2017, IN-80, Dalian, China, April 2017
(Invited - Prof. Namkyoo Park)

[33] Sunkyu Yu, Xianji Piao, Choonlae Cho & Namkyoo Park. Interdimensional wave transport based on optical isospectrality.
iSPN 2017, IN-59, Dalian, China, April 2017
(Invited - Dr. Sunkyu Yu)

[32] Xianji Piao, Sunkyu Yu, Minpyo Lee & Namkyoo Park. Antisymmetric Fano-resonant excitations of optical spin.
iSPN 2017, Oral-5, Dalian, China, April 2017

[31] Sunkyu Yu, Xianji Piao & Namkyoo Park. Correlated disorders of deterministic optical eigensystems.
OSK-TPS-OPJ Joint Symposium, Tokyo, Japan, November 2016
(Invited - Prof. Namkyoo Park)

[30] Xianji Piao, Sunkyu Yu & Namkyoo Park. Optical spin-dependent Fano resonances.
Meta 2016, Malaga, Spain, July 2016
(Invited - Dr. Xianji Piao)

[29] Sunkyu Yu, Xianji Piao & Namkyoo Park. Parity-time symmetric analogy of relativistic electrodynamics.
Meta 2016, P44, Malaga, Spain, July 2016

[28] Xianji Piao, Sunkyu Yu & Namkyoo Park. High-Q perfect absorption based on coherent Fano resonances.
Meta 2016, P41, Malaga, Spain, July 2016

[27] Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park. Designer eigensystems in disordered potentials.
Nano Korea 2016, Kintex, Korea, July 2016
(Invited - Prof. Namkyoo Park)

[26] Sunkyu Yu, Xianji Piao & Namkyoo Park. Artificially disordered potentials based on the competition between diagonal and off-diagonal disorders.
Nano Korea 2016, P1601_0291, Kintex, Korea, July 2016

[25] Xianji Piao, Sunkyu Yu & Namkyoo Park. Temporal coupled mode analysis for optical spin resonances in 2D, 3D chiral and gyrotropic materials.
Nano Korea 2016, P1601_0290, Kintex, Korea, July 2016

[24] Sunkyu Yu, Xianji Piao & Namkyoo Park. Controlling optical states in artificial disorders.
The First A3 Metamaterials Forum, I-17, Sendai, Japan, July 2016
(Invited - Prof. Namkyoo Park)

[23] Xianji Piao, Sunkyu Yu & Namkyoo Park. Fano based coherent perfect absorption in optical stub structures.
The First A3 Metamaterials Forum, P-16, Sendai, Japan, July 2016

[22] Sunkyu Yu, Hyun Sung Park, Xianji Piao, Bumki Min, Jiho Hong & Namkyoo Park. Chiral interactions of light in complex potentials.
The 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, Oxford, UK, September 2015
(Invited - Prof. Namkyoo Park)

[21] Jiho Hong, Sunkyu Yu & Namkyoo Park. Angle-dependent phase reversal through deep-subwavelength dislocation in hyperbolic metamaterials.
The 11th Conference on Lasers and Electro-Optics Pacific Rim, Busan, Korea, August 2015

[20] Jiho Hong, Sunkyu Yu, Xianji Piao & Namkyoo Park. Numerical Analysis of Nonlocal Effects in Hyperbolic Metamaterials.
4th Korea-Japan Metamaterials Forum 2014, P9, Osaka, Japan, December 2014

[19] Sunkyu Yu, Xianji Piao & Namkyoo Park. Optical Chirality based on Parity-time Symmetric Potentials.
Near Field Optics 13, 11B.1, Salt Lake City, USA, September 2014
(Invited - Prof. Namkyoo Park)

[18] Daniel R. Mason, Sergey G. Menabde, Sunkyu Yu, Seungkyun Park & Namkyoo Park. 1D Plasmons at Metal-dielectric Interfaces in 2D Systems.
Near Field Optics 13, P1.37, Salt Lake City, USA, September 2014

[17] Daniel R. Mason, Sergey G. Menabde, Sunkyu Yu & Namkyoo Park. 1-Dimensional Surface Plasmon Polaritons in 2-Dimensional Systems.
3rd Korea-Japan Metamaterials Forum 2013, K1, Seoul, June 2013
(Invited - Prof. Namkyoo Park)

[16] Sunkyu Yu, Daniel R. Mason, Xianji Piao & Namkyoo Park. PT-Symmetric Wave Dynamics in Photonic Molecular Systems.
3rd International Conference on Nonlinear Waves - Theory and Applications, MS6(III)-2, Beijing, China, June 2013
(Invited - Prof. Namkyoo Park)

[15] Seungkyun Park, Sunkyu Yu, Xianji Piao, Hyeokjung Kang & Namkyoo Park. Control of the Plasmonic Eigenmode Profile with Transformation Optics.
SPP6 2013, Th-30-P-48, Ottawa, Canada, May 2013

[14] Sunkyu Yu, Xianji Piao & Namkyoo Park. Group Velocity Walk-off between Molecular Parity Modes of Di-atomic Coupled Resonator Optical Waveguides.
ICNP 2012, O-35, Beijing, China, May 2012

[13] Xianji Piao, Sunkyu Yu & Namkyoo Park. Fano-like Asymmetry in MIM Stub based Plasmon-Induced Transparency.
ICNP 2012, O-21, Beijing, China, May 2012

[12] Xianji Piao, Sunkyu Yu & Namkyoo Park. All-optical half-adder based on photonic mode junction.
IQEC-CLEOPR-2011, 3450-CT-4, Sydney, August 2011

[11] Namkyoo Park, Sunkyu Yu, Xianji Piao & Sukmo Koo. Mode Junction Photonics for Digital Signal Processing.
ICNP 2011, IN-26, Shanghai, China, May 2011
(Invited - Prof. Namkyoo Park)

[10] Xianji Piao, Sunkyu Yu, Kwanhee Lee & Namkyoo Park. Fano-type asymmetry in MIM plasmonic stub.
ICNP 2011, P-B22, Shanghai, China, May 2011

[09] Inchul Woo, Sunkyu Yu & Namkyoo Park. Metallic Morpho using silver nanoshells within dielectric thin films.
SPP5 2011, TuP-34, Busan, Korea, May 2011

[08] Xianji Piao, M. Sathish Kumar, Sukmo Koo, Sunkyu Yu & Namkyoo Park. High-efficiency out of plane conversion and manipulation of Surface Plasmon Waves.
COIN 2010, PS-22, Jeju, July 2010

[07] Sunkyu Yu, Xianji Piao, Sukmo Koo & Namkyoo Park. Ultrafast Photonic Analog-to-Digital Converters based on Slow-light Photonic Crystal Structures.
Dasan Conference 2009, Paper S3-2, Jeju, Korea, November 2009
(Invited - Prof. Namkyoo Park)

[06] Sunkyu Yu, Sukmo Koo, Xianji Piao & Namkyoo Park. Application of slow-light photonic crystal structures for ultra-high speed all-optical analog-to-digital conversion.
Microoptics Conference 2009, Paper D1, Tokyo, Japan, October 2009
(Invited - Prof. Namkyoo Park)

[05] Young Jin Jung, Dongwon Park, Sunkyu Yu, Sukmo Koo, Hyungsuk Yu, Sanghun Han, Namkyoo Park, Jae Hun Kim, Young Min Jhon & Seok Lee. Metal-Slit Array Fresnel-Lens for Optical Coupling.
Numerical Simulation of Optoelectronic Devices 2009, WC1, Gwangju, Korea, September 2009

[04] Young Jin Jung, Sunkyu Yu, Sukmo Koo, Hyungsuk Yu, Sanghun Han, Namkyoo Park, Jae Hun Kim, Young Min Jhon & Seok Lee. Reconfigurable all-optical logic AND, NAND, OR, NOR, XOR and XNOR gates implemented by photonic crystal nonlinear cavities.
CLEO/Pacific Rim 2009, Shanghai, China, August 2009

[03] Sunkyu Yu, Sukmo Koo & Namkyoo Park. Photonic Crystal Analog-Digital Converters based on Slow-light Structures.
ICAIT 2009, Xian, China, July 2009
(Invited - Prof. Namkyoo Park)

[02] Sukmo Koo, Sunkyu Yu & Namkyoo Park. Numerical Analysis of Photonic ADC based on photonic crystal CROW structures.
COIN 2008, Paper 62, Akihabara, Tokyo, October 2008

[01] Seung Ah Lee, Sukmo Koo, Sunkyu Yu, Junseok Heo & Namkyoo Park. Operation frequency tuning of photonic crystal switch utilizing electric field bias control.
CLEO-PR, Paper ThP_86, Seoul, August 2007


Invited Seminars


[12] Sunkyu Yu. Photonic AI Technology.
ETRI, Daejeon, April 2022

[11] Sunkyu Yu. Disordered Photonics: Engineering the Intermediate Regime.
Hanyang University, Dept. of Physics, Seoul, March 2021

[10] Sunkyu Yu. Complexity in Photonics: Non-Hermitian, Non-Euclidean, and Disordered.
KAIST, Dept. of Mechanical Engineering, Daejeon, March 2021

[09] Sunkyu Yu. Disordered Photonics: Engineering the Intermediate Regime.
Seoul National University, Dept. of Materials Science and Engineering, Seoul, December 2020

[08] Sunkyu Yu. Disordered photonics: Engineering the intermediate regime between order and uncorrelated disorder.
Gwangju Institute of Science and Technology, School of EECS, Gwangju, November 2020

[07] Sunkyu Yu. Thinking with Light: Photonic AI.
Seoul National University, Dept. of Electrical and Computer Engineering, Seoul, October 2020

[06] Sunkyu Yu. Disordered Systems for Top Down Design of Waves.
Seoul National University, Dept. of Electrical and Computer Engineering, Seoul, May 2019

[05] Sunkyu Yu. Next Degrees of Freedom in Photonics.
Seoul National University, Dept. of Electrical and Computer Engineering, Seoul, February 2019

[04] Sunkyu Yu. Controlling Light from a Multidisciplinary Perspective.
KAIST, Dept. of Electrical Engineering, Daejeon, September 2018

[03] Sunkyu Yu. Supersymmetric photonics for engineering applications.
IBS, Center for Theoretical Physics of Complex Systems, Talks and Colloquia, Daejeon, July 2018

[02] Sunkyu Yu. Controlling Waves in Disordered and Non-Hermitian Potentials from a Multidisciplinary Perspective.
KAIST, Dept. of Physics, Physics Seminar Series, Daejeon, October 2017

[01] Sunkyu Yu. Nonclassical manipulation of waves by multidisciplinary perspective.
KAIST, Dept. of Electrical Engineering, Daejeon, May 2017


Domestic Conferences


[47] Gitae Lee, Ikbeom Lee, Namkyoo Park & Sunkyu Yu. Wannier-based design of photonic crystals preserving neighboring coupling.
OSK Winter Meeting 2024 T1D-V.04, Suwon, 15th February 2024

[46] Sunkyu Yu. Photonic Systems inspired by Network Science.
Photonics Conference 2023, Tutorial I, Pyeongchang, 29th November 2023
(Tutorial - Invited)

[45] Kyuho Kim, Ikbeom Lee, Seungkyun Park, Namkyoo Park & Sunkyu Yu. Anisotropy in stealthy hyperuniform metamaterials.
Optics and Photonics Congress 2023, T1F-II.05, Jeju, 29th August 2023

[44] Ikbeom Lee, Kyuho Kim, Gitae Lee & Sunkyu Yu. Optical mode converters using adjoint optimization.
Optics and Photonics Congress 2023, M4C-V.05, Jeju, 28th August 2023

[43] Sunkyu Yu & Namkyoo Park. Photonics with Engineered Disorder.
OSK Winter Meeting 2023, Distinguished Lectures on Metamaterials 2023 W2H-S, Busan, 15th February 2023
(Invited)

[42] Sunkyu Yu. Machine Learning for Designing Complex Materials.
KPS 70th Anniversary and 2022 Fall Meeting, F12.04, Busan, 21th October 2022
(Invited)

[41] Dayeong Lee, Ikbeom Lee, Seungkyun. Park, Namkyoo Park & Sunkyu Yu. Molecular Dynamics Analysis of HfO2 Phase Transition for Optoelectronic Devices.
Optics and Photonics Congress 2022, T2C-V.03*, Jeju, 5th July 2022

[40] Hyungchul Park, Jungmin Kim, Kyuho Kim, Namkyoo Park & Sunkyu Yu. Analysis of Anderson Localization in Disordered Hyperbolic Lattices using Modal Areas.
Optics and Photonics Congress 2022, M2H-I.05*, Jeju, 4th July 2022

[39] Jungmin Kim, Seungkyun Park, Ikbeom Lee, Sunkyu Yu & Namkyoo Park. Design of Multilayer-based Active Photonic Devices using Artificial Neural Networks.
Photonics Conference 2021, F2B-II.02*, Pyeongchang, 3rd December 2021

[38] Kyuho Kim, Seungkyun Park, Jungmin Kim, Ikbeom Lee, Namkyoo Park & Sunkyu Yu. Designing Chaotic Resonators based on the Deformation Strengths and Frequencies in view of Engineered Disorder.
Photonics Conference 2021, T1B-II.06*, Pyeongchang, 2nd December 2021

[37] Hyungchul Park, Seungkyun Park, Ikbeom Lee, Namkyoo Park & Sunkyu Yu. Analysis of Wave Transport and Localization in Hyperbolic Lattices.
Photonics Conference 2021, T1B-II.05*, Pyeongchang, 2nd December 2021

[36] Seungkyun Park, Jungmin Kim, Hyungchul Park, Sunkyu Yu & Namkyoo Park. Predicting Optical Wave Properties of Disordered Materials using Graph Neural Networks.
Photonics Conference 2021, T1B-II.04*, Pyeongchang, 2nd December 2021

[35] Sunkyu Yu. Topological Phenomena in Photonic Hyperbolic Lattices.
OSK Winter meeting 2021, W2E-V-1, Virtual, 17th February 2021
(Invited)

[34] Sunkyu Yu. Engineering Disordered Materials for Independent Control of Wave Properties.
Photonics Conference 2020, T3B-II, Virtual, 26th November 2020
(Invited)

[33] Sunkyu Yu. Unboxing Artificial Neural Networks for Disordered Photonics.
Quantum Photonics Workshop (QPW) 2020, Ulsan, 30th October 2020
(Invited)

[32] Sunkyu Yu, Xianji Piao & Namkyoo Park. Disordered Photonics using Quantum Analogy and Machine Learning.
OSK Summer meeting 2020, Rising Stars 30 Symposium, Busan, July 2020
(Invited - Dr. Sunkyu Yu)

[31] Jungmin Kim, Sunkyu Yu & Namkyoo Park. Inverse design of deformed photonic Dirac cone.
OSK Winter meeting 2019, FP-I-1, Hoengseong, February 2019

[30] Choonlae Cho, Sunkyu Yu, Minpyo Lee & Namkyoo Park. Elastic wave mode converter based on Darboux transformation.
KPS Fall Meeting 2018, P2-ap.301, Changwon, October 2018

[29] Sunkyu Yu, Xianji Piao & Namkyoo Park. Supersymmetric Transformation for Disordered Photonics.
OSK Annual Winter Meeting 2018, W2B-I-1, Gwanju, February 2018
(Invited - Dr. Sunkyu Yu)

[28] Minpyo Lee, Yunjung Kim, Sunkyu Yu & Namkyoo Park. Plasmonic Bloch Oscillation in a Graphene-Loaded Dielectric Waveguide Array.
OSK Annual Winter Meeting 2018, T3G-V-2, Gwanju, February 2018

[27] Jungmin Kim, Sunkyu Yu & Namkyoo Park. Crystal-like Momentum in a Designed Disordered Medium.
OSK Annual Winter Meeting 2018, W2B-I-2, Gwanju, February 2018

[26] Kyungwan Yoo, Sunkyu Yu, Xianji Piao & Namkyoo Park. Analysis of Second Harmonic Generation at Metal based on Hydrodynamic Model.
OSK Annual Winter Meeting 2017, FP-IV-6, Jeongseon, February 2017

[25] Minpyo Lee, Sunkyu Yu, Xianji Piao & Namkyoo Park. Analysis of Resonance in Cylindrical Hyperbolic Metamaterials.
OSK Annual Winter Meeting 2017, WP-I-6, Jeongseon, February 2017

[24] Kyungwan Yoo, Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park. Numerical analysis of Second Harmonic Generation in 2D metal structure based on Hydrodynamic model.
KPS Fall Meeting 2016, P2-op.020, Gwangju, October 2016

[23] Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park. Toward a Limit of Quality Factor in Coherent Perfect Absorption.
OSK Annual Winter Meeting 2015, T2B-V2, Daejeon, January 2015

[22] Seungkyun Park, Sunkyu Yu, Sergey G. Menabde & Namkyoo Park. A Low-Dimensional Graphene Hybrid Plasmonic Waveguide.
OSK Annual Winter Meeting 2015, T1B-V4, Daejeon, January 2015

[21] Xianji Piao, Sunkyu Yu, Jiho Hong & Namkyoo Park. Analytical Modeling of Optical Chiral Resonances Based on Coupled Mode Theory.
OSK Annual Winter Meeting 2015, T1B-V2, Daejeon, January 2015

[20] Sergey G. Menabde, Sunkyu Yu, Xianji Piao, Daniel R. Mason & Namkyoo Park. Low Dimensional Nano-Photonic Systems.
OSK Annual Summer Meeting 2014, Cheju, August 2014
(Plenary - Prof. Namkyoo Park)

[19] Kyungwan Yoo, Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park. Phase Transition of Anisotropic Metamaterials in Momentum Space based on Structural Modulation.
OSK Annual Summer Meeting 2014, W2B-V3, Cheju, August 2014

[18] Sunkyu Yu, Xianji Piao, Daniel R. Mason & Namkyoo Park. Rainbow Phase Transition in Parity-Time Symmetric Optical Structures.
OSK Annual Winter Meeting 2013, T1E-V1, Daejeon, February 2013
(Invited - Prof. Namkyoo Park)

[17] Haeri Park, Choonlae Cho, Sunkyu Yu & Namkyoo Park. One-dimensional Negative-Zero-Positive Index Metamaterial based on Parity-Time Symmetry Breaking.
Photonics Conference 2012, W2B-3, Pyeongchang, December 2012

[16] Seungkyun Park, Sunkyu Yu, Sungjun In, Hyeokjung Kang & Namkyoo Park. Compact, High Efficiency Mode Converter for Plasmonic Waveguides Interface based on Transformation Optics.
Photonics Conference 2012, F2B-3, Pyeongchang, December 2012

[15] Wonseok Kim, Sanjun Lee, Sunkyu Yu, Sukmo Koo & Namkyoo Park. Near-Field Enhancement of Metal Nano-Particle based on the Light Focusing by the Micro-Parabolic Mirror.
COOC 2012, T2C-V4, Gangnung, May 2012

[14] Kwanghee Lee, Sunkyu Yu & Namkyoo Park. Full-Adder Design Using Photonic Crystal Mode Junction Structure.
COOC 2011, T1C-V3, Kyoungju, June 2011

[13] Sunkyu Yu, Xianji Piao, Kwanghee Lee, Inchul Woo & Namkyoo Park. Parity-Time Symmetry Breaking in Plasmonic Slow Light.
OSK Annual Winter Meeting 2011, F1B-V4, Seoul, February 2011

[12] Inchul Woo, Sunkyu Yu & Namkyoo Park. Structure Color and Viewing Angle Analysis by Using Silver Nanoshells.
Photonics Conference 2010, F2B-3, Hoengseong, December 2010

[11] Xianji Piao, M. Sathish Kumar, Sukmo Koo, Sunkyu Yu & Namkyoo Park. Off-plane conversion of Surface Plasmon and its application.
COOC 2010, T1C-5, Jeongseon, May 2010

[10] Sanghoon Han, Sukmo Koo, Sunkyu Yu, Seong Soo Choi & Namkyoo Park. Radiation pattern analysis for optical horn antenna.
Photonics Conference 2009, W2D-4, Pyeong Chang, December 2009

[09] Xianji Piao, Sunkyu Yu, Sukmo Koo & Namkyoo Park. Actively Controlled All-Optical Saturable Absorber based on Nonlinear Photonic Crystal Structure.
Photonics Conference 2009, W2B-3, Pyeong Chang, December 2009

[08] Sunkyu Yu, Xianji Piao, Sukmo Koo, Kwanghee Lee & Namkyoo Park. 100 GS/s All-Optical Analog-to-Digital Conversion utilizing Slow Light Structure.
Photonics Conference 2009, T1B-2, Pyeong Chang, December 2009

[07] Young Jin Jung, Sunkyu Yu, Sukmo Koo, Sanghoon Han, Hyungsuk Yu, Namkyoo Park, Jae Hun Kim, Young Min Jhon & Seok Lee. Reconfigurable all-optical logic AND, NAND, OR, NOR, XOR and XNOR gates implemented by photonic crystal nonlinear cavity.
COOC 2009, T2A-2, Daecheon, May 2009

[06] Sukmo Koo, Sunkyu Yu, Young Jin Jung, Sanghoon Han, Min Ah Seo, Hyeong Ryeol Park, Dai-Sik Kim & Namkyoo Park. Electric field enhancement in the metal slit at different thickness.
OSK Winter Annual Meeting 2009, TP-I5, Seoul, February 2009

[05] Dongwon Park, Young Jin Jung, Sukmo Koo, Sunkyu Yu, Young Min Jhon, Seok Lee & Namkyoo Park. Metal-slit assisted Fresnel-lens design for optical coupling.
Photonic Conference 2008, TP-100, Jecheon, November 2008

[04] Sukmo Koo, Sunkyu Yu, Young Jin Jung, Sanghoon Han, Min Ah Seo, Hyeong Ryeol Park, Dai-Sik Kim & Namkyoo Park. Numerical analysis of optical transmission properties through sub-wavelength rectangular real metal slit.
Photonic Conference 2008, T1B-4, Jecheon, November 2008

[03] Sunkyu Yu, Sukmo Koo, Hyunsung Park, Jeonghwan Lee & Namkyoo Park. All Optical Mach-Zehnder Modulator based on Photonic Crystal Coupled Resonator Optical Waveguides.
OSK Summer Meeting 2008, T1B-V3, PyeongChang, July 2008

[02] Sunkyu Yu, Sukmo Koo, Sangwook Kwon & Namkyoo Park. 60° Bending properties of single mode photonic crystal coupled resonator optical waveguides.
Photonics Conference 2007, T1A-3, Jeju, November 2007

[01] Seung Ah Lee, Sukmo Koo, Junseok Heo, Sunkyu Yu & Namkyoo Park. Wavelength tunable photonic crystal switch utilizing electric field bias control.
OSK Annual Meeting 2007, TP-V7, Gwangju Institute of Science and Technology, February 2007