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Young-Ho Ko
Young-Ho Ko
Verified email at etri.re.kr
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Electrically driven, phosphor-free, white light-emitting diodes using gallium nitride-based double concentric truncated pyramid structures
SH Lim, YH Ko, C Rodriguez, SH Gong, YH Cho
Light: Science & Applications 5 (2), e16030-e16030, 2016
852016
Electrically driven quantum dot/wire/well hybrid light‐emitting diodes
YH Ko, JH Kim, LH Jin, SM Ko, BJ Kwon, J Kim, T Kim, YH Cho
Advanced materials 23 (45), 5364-5369, 2011
802011
Multi-color broadband visible light source via GaN hexagonal annular structure
YH Ko, J Song, B Leung, J Han, YH Cho
Scientific reports 4 (1), 5514, 2014
632014
Ultrafast single photon emitting quantum photonic structures based on a nano-obelisk
JH Kim, YH Ko, SH Gong, SM Ko, YH Cho
Scientific reports 3 (1), 2150, 2013
572013
Self-aligned deterministic coupling of single quantum emitter to nanofocused plasmonic modes
SH Gong, JH Kim, YH Ko, C Rodriguez, J Shin, YH Lee, LS Dang, ...
Proceedings of the National Academy of Sciences 112 (17), 5280-5285, 2015
512015
Red emission of InGaN/GaN double heterostructures on GaN nanopyramid structures
YH Ko, JH Kim, SH Gong, J Kim, T Kim, YH Cho
ACS Photonics 2 (4), 515-520, 2015
402015
Toward highly radiative white light emitting nanostructures: a new approach to dislocation-eliminated GaN/InGaN core–shell nanostructures with a negligible polarization field
JH Kim, YH Ko, JH Cho, SH Gong, SM Ko, YH Cho
Nanoscale 6 (23), 14213-14220, 2014
352014
Growth mechanism of catalyst-free and mask-free heteroepitaxial GaN submicrometer-and micrometer-sized rods under biaxial strain: Variation of surface energy and adatom kinetics
SM Ko, JH Kim, YH Ko, YH Chang, YH Kim, J Yoon, JY Lee, YH Cho
Crystal growth & design 12 (8), 3838-3844, 2012
322012
Plug‐and‐Play Single‐Photon Devices with Efficient Fiber‐Quantum Dot Interface
WB Jeon, JS Moon, KY Kim, YH Ko, CJK Richardson, E Waks, JH Kim
Advanced Quantum Technologies 5 (10), 2200022, 2022
272022
A quantitative method for determination of carrier escape efficiency in GaN-based light-emitting diodes: A comparison of open-and short-circuit photoluminescence
SH Lim, YH Ko, YH Cho
Applied Physics Letters 104 (9), 2014
252014
Dislocation-eliminating chemical control method for high-efficiency GaN-based light emitting nanostructures
JH Kim, CS Oh, YH Ko, SM Ko, KY Park, M Jeong, JY Lee, YH Cho
Crystal growth & design 12 (3), 1292-1298, 2012
232012
Monolithic growth of GaAs laser diodes on Si (001) by optimal AlAs nucleation with thermal cycle annealing
YH Ko, KJ Kim, WS Han
Optical Materials Express 11 (3), 943-951, 2021
82021
Cost Effective Silica‐Based 100 G DP‐QPSK Coherent Receiver
SY Lee, YT Han, JH Kim, HD Joung, JS Choe, CJ Youn, YH Ko, YH Kwon
ETRI Journal 38 (5), 981-987, 2016
72016
Fabrication of moth eye structures via charged nanoparticle lithography with size and density control
YH Ko, LH Jin, YH Cho
Thin Solid Films 519 (7), 2251-2254, 2011
62011
High quality GaAs epitaxially grown on Si (001) substrate through AlAs nucleation and thermal cycle annealing
YH Ko, KJ Kim, JH Baek, SY Lee, DJ Kim, JH Kim, H Guim, WS Han
Solid-State Electronics 166, 107763, 2020
52020
High-speed waveguide photodetector for 64 Gbaud coherent receiver
YH Ko, JS Choe, WS Han, SY Lee, YT Han, HD Jung, CJ Youn, JH Kim, ...
Optics Letters 43 (3), 579-582, 2018
52018
Countermeasure for security loophole caused by asymmetric correlations of reference frame independent quantum key distribution with fewer quantum states
K Lim, BS Choi, JH Baek, M Kim, JS Choe, KJ Kim, YH Ko, CJ Youn
Optics Express 29 (12), 18966-18975, 2021
42021
Wafer-scale crack-free AlGaN on GaN through two-step selective-area growth for optically pumped stimulated emission
YH Ko, SB Bae, SB Kim, DC Kim, YA Leem, YH Cho, ES Nam
Journal of Crystal Growth 445, 78-83, 2016
42016
Optical waveguide structure
DJ Kim, YH Ko, D Kim, JH Kim, Y Baek, J Song, DH Lee, B Choi, WS Han
US Patent 10,649,139, 2020
32020
Cost-effective 400-Gbps micro-intradyne coherent receiver using optical butt-coupling and FPCB wirings
SY Lee, YT Han, JH Kim, YH Ko, CJ Youn, HD Jung, JS Choe, WS Han, ...
Optics Express 26 (22), 28453-28460, 2018
32018
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