Journal Articles

Peer-Reviewed Journal Papers

[52] Hyungchul Park, Xianji Piao* & Sunkyu Yu*. Scalable and Programmable Emulation of Photonic Hyperbolic Lattices.
ACS Photonics 11, 3890-3897 (2024): Invited Article (Special Issue: “Rising Stars in Photonics”)

[51] Gyunghun Kim, Joseph Suh, Dayeong Lee, Namkyoo Park* & Sunkyu Yu*. Long-range-interacting topological photonic lattices breaking channel-bandwidth limit.
Light: Science & Applications 13, 189 (2024)

[50] Geun Woo Baek, Yeon Jun Kim, Jaekwon Kim, Jun Hyuk Chang, Uhjin Kim, Soobin An, Junhyeong Park, Sunkyu Yu, Wan Ki Bae, Jaehoon Lim, Soo-Yeon Lee & Jeonghun Kwak*. Memristive Switching Mechanism in Colloidal InP/ZnSe/ZnS Quantum Dot-Based Synaptic Devices for Neuromorphic Computing.
Nano Letters 24, 5855 (2024)

[49] Xianji Piao, Sunkyu Yu* & Namkyoo Park*. Programmable Photonic Time Circuits for Highly Scalable Universal Unitaries.
Physical Review Letters 132, 103801 (2024)

[48] Taesoo Lee, Minhyung Lee, Kyuho Kim, Hyunkoo Lee, Suk-Young Yoon, Heesun Yang, Sunkyu Yu & Jeonghun Kwak*. Angle-Independent Top-Emitting Quantum-Dot Light-Emitting Diodes Using a Solution-Processed Subwavelength Scattering–Capping Layer.
Advanced Optical Materials 2302509 (2024)

[47] Joseph Suh, Gyunghun Kim, Hyungchul Park, Shanhui Fan, Namkyoo Park* & Sunkyu Yu*. Photonic Topological Spin Pump in Synthetic Frequency Dimensions.
Physical Review Letters 132, 033803 (2024)

[46] Sunkyu Yu* & Namkyoo Park*. Heavy tails and pruning in programmable photonic circuits for universal unitaries.
Nature Communications 14, 1853 (2023)

[45] Dayeong Lee, Hyungchul Park & Sunkyu Yu*. Engineering isospectrality in multidimensional photonic systems.
Nanophotonics 12, 2593-2601 (2023): Invited Article

[44] Jungmin Kim, Dayeong Lee, Sunkyu Yu* & Namkyoo Park*. Unidirectional scattering with spatial homogeneity using correlated photonic time disorder.
Nature Physics 19, 726 (2023)

[43] Sunkyu Yu*. Evolving scattering networks for engineering disorder.
Nature Computational Science 3, 128-138 (2023)
: Highlighted in News & Views, Nat. Comput. Sci. & Cover Paper

[42] Seunghwa Oh, Jungmin Kim, Xianji Piao, Seulong Kim, Kihong Kim, Sunkyu Yu & Namkyoo Park*. Control of localization and optical properties with deep-subwavelength engineered disorder.
Optics Express 30, 28301 (2022)

[41] Seou Choi†, Jungmin Kim†, Jeonghun Kwak, Namkyoo Park* & Sunkyu Yu*. Topologically Protected All-Optical Memory.
Advanced Electronic Materials 8, 2200579 (2022): Cover Paper

[40] Jungmin Kim, Seungkyun Park, Sunkyu Yu* & Namkyoo Park*. Machine-Engineered Active Disorder for Digital Photonics.
Advanced Optical Materials 10, 2102642 (2022): Cover Paper

[39] Seungkyun Park†, Ikbeom Lee†, Jungmin Kim, Namkyoo Park* & Sunkyu Yu*. Hearing the shape of a drum for light: isospectrality in photonics.
Nanophotonics 11, 2763 (2022): Invited Review Article

[38] Sunkyu Yu*, Xianji Piao & Namkyoo Park*. Topologically protected optical signal processing using parity–time-symmetric oscillation quenching.
Nanophotonics 10, 2883 (2021)

[37] Sunkyu Yu†, Cheng-Wei Qiu†, Yidong Chong, Salvatore Torquato* & Namkyoo Park*. Engineered Disorder in Photonics.
Nature Reviews Materials 6, 226 (2021): Invited Review Article

[36] Sung Yoon Min, Ju Young Kim, Sunkyu Yu, Sergey G. Menabde & Min Seok Jang*. Exceptional Points in Plasmonic Waveguides Do Not Require Gain or Loss.
Physical Review Applied 14, 054041 (2020)

[35] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Machine learning identifies scale-free properties in disordered materials.
Nature Communications 11, 4842 (2020)

[34] Sunkyu Yu*, Xianji Piao & Namkyoo Park*. Topological Hyperbolic Lattices.
Physical Review Letters 125, 053901 (2020): Cover Paper

[33] Choonlae Cho, Sunkyu Yu* & Namkyoo Park*. Elastic Hamiltonians for quantum analog applications.
Physical Review B 101, 134107 (2020)

[32] Jungmin Kim, Sunkyu Yu* & Namkyoo Park*. Universal design platform for an extended class of photonic Dirac cones.
Physical Review Applied 13, 044015 (2020)

[31] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Chirality in Non-Hermitian Photonics.
Current Optics and Photonics 3, 275 (2019): Invited Review Article DOI: 10.3807/COPP.2019.3.4.275

[30] Kyungwan Yoo, Simon F. Becker, Martin Silies, Sunkyu Yu*, Christoph Lienau, and Namkyoo Park*. Steering second-harmonic radiation through local excitations of plasmon.
Optics Express 27, 18246 (2019)

[29] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Neuromorphic Functions of Light in Parity‐Time‐Symmetric Systems.
Advanced Science 6, 1900771 (2019): Cover Paper

[28] Xianji Piao, Sunkyu Yu & Namkyoo Park*. Design of Transverse Spinning of Light with Globally Unique Handedness.
Physical Review Letters 120, 203901 (2018)

[27] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Bohmian Photonics for Independent Control of Phase and Amplitude of Waves.
Physical Review Letters 120, 193902 (2018)

[26] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Designing non-Hermitian dynamics for conservative state evolution on the Bloch sphere.
Physical Review A 97, 033805 (2018)

[25] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Disordered Potential Landscapes for Anomalous Delocalization and Superdiffusion of Light.
ACS Photonics 5, 1499 (2018)

[24] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Controlling Random Waves with Digital Building Blocks based on Supersymmetry.
Physical Review Applied 8, 054010 (2017)

[23] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Target decoupling in coupled systems resistant to random perturbation.
Scientific Reports 7, 2139 (2017)

[22] Yunjung Kim, Sunkyu Yu & Namkyoo Park*. Low-dimensional gap plasmons for enhanced light-graphene interactions.
Scientific Reports 7, 43333 (2017)

[21] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Acceleration toward polarization singularity inspired by relativistic E×B drift.
Scientific Reports 6, 37754 (2016)

[20] Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park*. Metadisorder for designer light in random systems.
Science Advances 2, e1501851 (2016)

[19] Sunkyu Yu†, Hyun Sung Park†, Xianji Piao, Bumki Min & Namkyoo Park*. Low-dimensional optical chirality in complex potentials.
Optica 3, 1025 (2016): Cover Paper

[18] Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park*. Interdimensional optical isospectrality inspired by graph networks.
Optica 3, 836 (2016)

[17] Xianji Piao, Sunkyu Yu, Jiho Hong & Namkyoo Park*. Spectral separation of optical spin based on antisymmetric Fano resonances.
Scientific Reports 5, 16585 (2015)

[16] Sunkyu Yu, Xianji Piao, Jiho Hong & Namkyoo Park*. Bloch-like waves in random-walk potentials based on supersymmetry.
Nature Communications 6, 8269 (2015)

[15] Sunkyu Yu, Xianji Piao, Kyungwan Yoo, Jonghwa Shin & Namkyoo Park*. One-way optical modal transition based on causality in momentum space.
Optics Express 23, 24997 (2015)

[14] Sunkyu Yu†, Xianji Piao†, Jiho Hong & Namkyoo Park*. Progress toward high-Q perfect absorption: A Fano antilaser.
Physical Review A 92, 011802(R) (2015)

[13] Daniel R. Mason, Sergey G. Menabde, Sunkyu Yu & Namkyoo Park*. Plasmonic Excitations of 1D Metal-Dielectric Interfaces in 2D Systems: 1D Surface Plasmon Polaritons.
Scientific Reports 4, 4536 (2014)

[12] Sunkyu Yu, Daniel R. Mason, Xianji Piao & Namkyoo Park*. Phase-Dependent Reversible Non-reciprocity in Complex Meta-molecules.
Physical Review B 87, 125143 (2013)

[11] Inchul Woo, Sunkyu Yu, Jae Sung Lee, Jung H. Shin, Mi Jung & Namkyoo Park*. Plasmonic Structural-Color Thin Film with a Wide Reception Angle and Strong Retro-Reflectivity.
IEEE Photonics Journal 4, 2182 (2012)

[10] Sunkyu Yu, Xianji Piao, Daniel R. Mason & Namkyoo Park*. Spatiospectral Separation of Exceptional Points in PT-Symmetric Optical Potentials.
Physical Review A 86, 031802(R) (2012)

[09] Xianji Piao, Sunkyu Yu & Namkyoo Park*. Control of Fano Asymmetry in Plasmon Induced Transparency and its Application to Plasmonic Waveguide Modulator.
Optics Express 20, 18994 (2012)

[08] Kyungjae Chung†, Sunkyu Yu†, Chul-Joon Heo, Jae Won Shim, Seung-Man Yang, Moon Gyu Han, Hong-Seok Lee, Yongwan Jin, Sang Yoon Lee, Namkyoo Park & Jung H. Shin*. Flexible, Angle-Independent Structural Color Reflectors Inspired by Morpho Butterfly Wings.
Advanced Materials 24, 2375 (2012): Cover Paper & Highlighted in Nature

[07] Sunkyu Yu, Xianji Piao & Namkyoo Park*. Slow-Light Dispersion Properties of Multiatomic Multiband Coupled Resonator Optical Waveguides.
Physical Review A 85, 023823 (2012)

[06] Sunkyu Yu, Xianji Piao, Sukmo Koo, Jung H. Shin, Seung Hoon Lee, Bumki Min & Namkyoo Park*. Mode Junction Photonics with a Symmetry-Breaking Arrangement of Mode-Orthogonal Heterostructures.
Optics Express 19, 25500 (2011)

[05] Xianji Piao, Sunkyu Yu, Sukmo Koo, Kwanghee Lee & Namkyoo Park*. Fano-Type Spectral Asymmetry and its Control for Plasmonic Metal-Insulator-Metal Stub Structures.
Optics Express 19, 10907 (2011)

[04] M. Sathish Kumar, Xianji Piao, Sukmo Koo, Sunkyu Yu & Namkyoo Park*. Out of Plane Mode Conversion and Manipulation of Surface Plasmon Polariton Waves.
Optics Express 18, 8800 (2010)

[03] M. Sathish Kumar, Sergey G. Menabde, Sunkyu Yu & Namkyoo Park*. Directional Emission from Photonic Crystal Waveguide Terminations using Particle Swarm Optimization.
Journal of the Optical Society of America B 27, 343 (2010)

[02] Young Jin Jung, Dongwon Park, Sukmo Koo, Sunkyu Yu & Namkyoo Park*. Metal Slit Array Fresnel Lens for Wavelength-Scale Optical Coupling to Nanophotonic Waveguides.
Optics Express 17, 18852 (2009)

[01] Sunkyu Yu, Sukmo Koo & Namkyoo Park*. Coded Output Photonic A/D Converter based on Photonic Crystal Slow-Light Structures.
Optics Express 16, 13752 (2008)

*Corresponding authorship

†Equally contributed

Domestic Journal Papers

[02] Hyeongyeol PAK, Sukmo Koo, Sunkyu Yu & Namkyoo Park*. Optimization of the Optical Nanofocusing Energy in a Metal Tip Employing a Grating Coupler.
New Physics: Sae Mulli 60, 63 (2010)

[01] Dongwon Park, Young Jin Jung, Sukmo Koo, Sunkyu Yu, Namkyoo Park*, Young Min Jhon & Seok Lee. Design of Metal-Slit Fresnel Lens for Enhanced Coupling Efficiency.
Korean Journal of Optics and Photonics 20, 1 (2009)