Prof. Yong-Hoon Cho Profile

Prof. Yong-Hoon Cho

Professor at KAIST

SPIE Involvement:

Conference Program Committee | Conference Chair | Editor | Author

Area of Expertise:

nano photonics , quantum photonics , light-matter interaction , wide-bandgap semiconductors , light emitting devices , ultrafast phenomena

For significant contribution to nanoscale and quantum photonics based on low-dimensional semiconductor nanostructures such as quantum dots and nanowires, in particular for developing high efficiency classical and quantum light emitters and photonic devices, and to development of subwavelength light focusing and super-resolution imaging techniques for nanophotonic and biological applications

Proceedings Article | 5 October 2023 Presentation

Strong coupling between exciton and superscar mode in ultraviolet emitting GaN triangular structure

Yong-Hoon Cho, Chang Young Sung

Proceedings Volume PC12652, PC1265203 (2023) https://doi.org/10.1117/12.2680603

KEYWORDS: Gallium nitride, Polaritons, Excitons, Ultraviolet radiation, Whispering gallery modes, Particles, Oscillators, Optical resonators, Optical microcavities, Metalorganic chemical vapor deposition

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Proceedings Article | 5 October 2023 Presentation

Ultra-low power electronic nose using micro UV-LED-based monolithic gas sensor and deep learning

Inkyu Park, Kichul Lee, Incheol Cho, Yong-Hoon Cho

Proceedings Volume PC12652, PC126520E (2023) https://doi.org/10.1117/12.2682874

KEYWORDS: Gas sensors, Nose, Light emitting diodes, Deep learning, Sensors, Pattern recognition, Internet of things, Ultraviolet radiation, Safety, Power consumption

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Proceedings Article | 4 October 2022 Presentation

From parity time-reversal symmetry to its breaking via whispering gallery polariton based on wide bandgap semiconductor (Conference Presentation)

Hyun Gyu Song, Yong-Hoon Cho

Proceedings Volume PC12201, PC1220101 (2022) https://doi.org/10.1117/12.2633187

KEYWORDS: Polaritons, Wide bandgap semiconductors, Photonic crystals, Photon polarization, Optical microcavities, Excitons, Waveguides, Semiconductors, Refractive index, Plasmonics

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Proceedings Article | 5 March 2022 Presentation + Paper

1D photonic crystal GeSn-on-insulator nanobeam laser

Hyo-Jun Joo, Youngmin Kim, Daniel Burt, Yongduck Jung, Lin Zhang, Melvina Chen, Samuel Jior Parluhutan, Dong-Ho Kang, Chulwon Lee, Simone Assali, Zoran Ikonic, Oussama Moutanabbir, Yong-Hoon Cho, Chuan Seng Tan, Donguk Nam

Proceedings Volume 12006, 120060L (2022) https://doi.org/10.1117/12.2608589

KEYWORDS: Photonic crystals, Raman spectroscopy, Tin, Photonic integrated circuits, Germanium, Silicon, Scanning electron microscopy, Lasers

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Proceedings Article | 5 March 2022 Presentation

Nanoscale luminescence selection of quantum dot using focused-ion-beam

Minho Choi, Seongmoon Jun, Kie Young Woo, Hyun Gyu Song, Hwanseop Yeo, Sunghan Choi, Doyoun Park, Chung-Hyun Park, Yong-Hoon Cho

Proceedings Volume PC12010, PC1201017 (2022) https://doi.org/10.1117/12.2607510

KEYWORDS: Quenching (fluorescence), Luminescence, Ion beams, Signal to noise ratio, Quantum wells, Single photon, Spatial resolution, Helium, Stimulated emission depletion microscopy, Resolution enhancement technologies

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Proceedings Article | 21 August 2020 Presentation

Potential energy and landscape control of room-temperature triangular-whispering gallery polariton condensate

Hyun Gyu Song, Sunghan Choi, Chung Hyun Park, Su-Hyun Gong, Chul Won Lee, Min Sik Kwon, Dae Gwang Choi, Kie Young Woo, Yong-Hoon Cho

Proceedings Volume 11466, 114660D (2020) https://doi.org/10.1117/12.2570857

KEYWORDS: Polaritons, Semiconductors, Optical microcavities, Excitons, Photons, Acoustics, Cryogenics, Wide bandgap semiconductors, Refractive index, Gallium nitride

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Proceedings Article | 21 August 2020 Presentation

Plateau-like broadband ultraviolet emission from GaN quantum dots formed on multiple facets

Jong-Hoi Cho, Seung-Hyuk Lim, Min-Ho Jang, Chulwon Lee, Hwan-Seop Yeo, Young Chul Sim, Je-Hyung Kim, Samuel Matta, Seoung-Hwan Park, Julien Brault, Yong-Hoon Cho

Proceedings Volume 11466, 1146603 (2020) https://doi.org/10.1117/12.2570858

KEYWORDS: Ultraviolet radiation, Gallium nitride, Quantum dots, Light emitting diodes, Semiconductors, Mercury, Xenon, Ultraviolet light emitting diodes, Spectrophotometry, Sapphire

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Proceedings Article | 9 March 2020 Presentation

Influence of Si intermixing on optical properties of Ge on Si and monolithic integration of Ge on Si nanocavity (Conference Presentation)

Chulwon Lee, Hyun Gyu Song, Ki-Young Woo, Daegwang Choi, Yong-Hoon Cho

Proceedings Volume 11285, 112850T (2020) https://doi.org/10.1117/12.2545850

KEYWORDS: Silicon, Germanium, Optical properties, Etching, Annealing, Luminescence, Femtosecond phenomena, Chemical analysis, Semiconductor lasers, Laser applications

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Proceedings Article | 20 April 2017 Presentation

Classical and quantum light generation using nitride-based semiconductor micro- and nanostructures (Conference Presentation)

Yong-Hoon Cho

Proceedings Volume 10124, 101240I (2017) https://doi.org/10.1117/12.2249536

KEYWORDS: Quantum dots, Gallium nitride, Nanostructures, Single photon, Semiconductors, Nanolithography, Quantum wells, Chemical vapor deposition, Ultrafast phenomena

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Proceedings Article | 4 March 2013 Paper

Polychromatic white LED using GaN nano pyramid structure

Taek Kim, Jusung Kim, Moonseung Yang, Yongsoo Park, U-In Chung, Yongho Ko, Yonghoon Cho

Proceedings Volume 8641, 86410E (2013) https://doi.org/10.1117/12.2006561

KEYWORDS: Indium gallium nitride, Light emitting diodes, Quantum wells, Gallium nitride, Scanning electron microscopy, Crystals, Luminescence, Dielectrics, Transmission electron microscopy, Piezoelectric effects

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Proceedings Article | 16 June 2004 Paper

Optical characteristics of hexagonal and cubic GaN self-assembled quantum dots

Yong Hoon Cho, B. J. Kown, Julien Barjon, J. Brault, B. Daudin, Henri Mariette, Le Dang

Proceedings Volume 5352, (2004) https://doi.org/10.1117/12.526103

KEYWORDS: Gallium nitride, Aluminum, Gallium, Waveguides, Optical properties, Absorption, Quantum wells, Heterojunctions, Quantum dots, Ultraviolet radiation

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Proceedings Article | 6 August 1999 Paper

Nonlinear optical spectroscopy of band tail states in highly excited InGaN

Theodore Schmidt, Yong-Hoon Cho, Sergiy Bidnyk, Jin-Joo Song, Stacia Keller, Umesh Mishra, Steven DenBaars

Proceedings Volume 3625, (1999) https://doi.org/10.1117/12.356921

KEYWORDS: Absorption, Indium gallium nitride, Spectroscopy, Gallium nitride, Silicon, Optical spectroscopy, Optical pumping, Solids, Quantum wells, Indium

Proceedings Article | 24 May 1999 Paper

Time-resolved photoluminescence studies of GaN, InGaN, and AlGaN grown by metalorganic chemical vapor deposition

Yong-Hoon Cho, Gordon Gainer, Jin-Joo Song, Sarah Keller, Umesh Mishra, Steven DenBaars, Wei Yang, Scott McPherson

Proceedings Volume 3624, (1999) https://doi.org/10.1117/12.349308

KEYWORDS: Gallium nitride, Indium gallium nitride, Silicon, Doping, Temperature metrology, Luminescence, Quantum wells, Interfaces, Metalorganic chemical vapor deposition, Chlorine

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Proceedings Article | 23 April 1998 Paper

Carrier dynamics of anti-Stokes photoluminescence in staggered-band-lineup AlxGa1-xAs/GaInP2 heterostructures

Yong-Hoon Cho, Jin-Joo Song, Dongsik Kim, HeeWoong Lim, Byung-Doo Choe

Proceedings Volume 3277, (1998) https://doi.org/10.1117/12.306147

KEYWORDS: Luminescence, Heterojunctions, Absorption, Quantum wells, Helium neon lasers, Indium gallium phosphide, Aluminum, Carrier dynamics, Spectroscopy, Excitons

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Showing 5 of 14 publications

SPIE Conference Volume | 13 October 2023

UV and Higher Energy Photonics: From Materials to Applications 2023

SPIE Conference Volume | 7 November 2022

UV and Higher Energy Photonics: From Materials to Applications 2022

SPIE Conference Volume | 23 August 2021

UV and Higher Energy Photonics: From Materials to Applications 2021

SPIE Conference Volume | 21 September 2020

UV and Higher Energy Photonics: From Materials to Applications 2020

SPIE Conference Volume | 4 October 2019

UV and Higher Energy Photonics: From Materials to Applications 2019

Showing 5 of 8 publications

Conference Committee Involvement (18)

Light-Emitting Devices, Materials, and Applications XXIX

25 January 2025 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2024

18 August 2024 | San Diego, California, United States

Light-Emitting Devices, Materials, and Applications XXVIII

29 January 2024 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2023

20 August 2023 | San Diego, California, United States

Light-Emitting Devices, Materials, and Applications XXVII

30 January 2023 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2022

21 August 2022 | San Diego, California, United States

Light-Emitting Devices, Materials, and Applications XXVI

24 January 2022 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2021

2 August 2021 | San Diego, California, United States

Light-Emitting Devices, Materials, and Applications XXV

6 March 2021 | Online Only, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2020

25 August 2020 | Online Only, California, United States

Light-Emitting Devices, Materials, and Applications XXIV

3 February 2020 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2019

11 August 2019 | San Diego, California, United States

Light-Emitting Devices, Materials, and Applications

4 February 2019 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2018

19 August 2018 | San Diego, California, United States

Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXII

29 January 2018 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications 2017

6 August 2017 | San Diego, California, United States

Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXI

30 January 2017 | San Francisco, California, United States

UV and Higher Energy Photonics: From Materials to Applications

28 August 2016 | San Diego, California, United States

Showing 5 of 18 Conference Committees

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