Journals

In progress

[24] Junhyeok Jang, Kyuho Kim, Byungchoon Yang, Changhyun Kim, Taewon Choi, Byoungho Lee, and Yoonchan Jeong* (2026). (Submitted) [Link]

[23] Minho Choi‡, Changhyun Kim‡, Sunghyun Moon, Hyeon Hwang, Min-Kyo Seo, Hyang-Tag Lim, Haejun Chung, Hojoong Jung*, and Hyounghan Kwon*, "Versatile on-chip reconfigurable two-photon interference platforms using thin-film lithium niobate," (2026) (Submitted) [Link]

[22] Hyeyoung Yoon‡, Changhyun Kim‡, Hyang-Tag Lim, Hojoong Jung, Inki Kim*, and Hyounghan Kwon*, "Design of compact nanophotonic hyper-entangled Bell-state analyzer," (2026). (In revision) [Link]

[21] Changhyun Kim‡, Hansol Kim‡, Minho Choi, Junhyung Lee, Yongchan Park, Sunghyun Moon, Jinil Lee, Hyeon Hwang, Min-Kyo Seo, Yoon-ho Kim, Yong-su Kim, Hojoong Jung*, and Hyounghan Kwon*, "Integrated bright source of polarization-entangled photons using lithium niobate photonic chips," (2026). (In review) [arXiv] [Link]

2026

[20] Gun-Yeal Lee‡*, Changhyun Kim‡*, Manu Gopakumar, Youngjin Kim, Byoungho Lee, Yoonchan Jeong*, and Gordon Wetzstein*, "Neural phase microscopy with metasurface optics for real-time and nanoscale quantitative phase imaging," Nature Communications (2026). (In press) [Link]

2025

[19] Changhyun Kim‡, Hansol Kim‡, Sunghyun Moon‡, Hojoong Jung*, and Hyounghan Kwon*, "Integrated lithium niobate photonic devices for photonic quantum information science," Nano Convergence (2025). (In press) [Link]

[18] Sunghyun Moon‡, Hansol Kim‡, Junhyung Lee, Changhyun Kim, Minho Choi, Hyeong-Soon Jang, Hyeonjun Bae, Hyeon Hwang, Min-Kyo Seo, Hojoong Jung*, and Hyounghan Kwon*, "㎼-level green light generation via quasi- and modal-phase-matched lithium niobate waveguides," Optics Express 33(24), 50922-50936 (2025). [Link]

[17] Junhyung Lee‡, Sunghyun Moon‡, Yongchan Park, Uijoon Park, Hansol Kim, Changhyun Kim, Minho Choi, Jinil Lee, Hyeon Hwang, Min-Kyo Seo, Dae-Hwan Ahn, Hojoong Jung*, and Hyounghan Kwon*, "On-chip polarization management for stable nonlinear signal generation in thin-film lithium niobate," Nanophotonics (2025). [Link]

[16] Hansol Kim‡, Seungwon Moon‡, Changhyun Kim, Minho Choi, Hyunjoon Bae, Hye-Yoon Jeon, Hyeon Hwang, Min-Kyo Seo, Hojoong Jung*, and Hyounghan Kwon*, "Continuous-wave laser-driven cascaded harmonic generation in a periodically poled lithium niobate racetrack resonator," Laser & Photonics Reviews 19(19) e01794 (2025). [Link]

[15] Sunghyun Moon‡, Jinil Lee‡, Junhyung Lee‡, Youngseo Koh, Changhyun Kim, Hyeong-Soon Jang, Sang-In Kim, Sang-Wook Han, Hojoong Jung*, and Hyounghan Kwon*, "Thin-film lithium niobate rapid adiabatic couplers enabling highly visible two-photon interference," Photonics Research 13(6), 1579-1590 (2025). [Link]

[14] Junseo Bang, Youngjin Kim, Taewon Choi, Changhyun Kim, Hyunwoo Son, Sun-Je Kim*, Yoonchan Jeong*, and Byoungho Lee, "Cascaded Janus meta-optics: generalized platform for bidirectional asymmetric modulation of light," ACS Photonics 12(3), 1666-1675 (2025). [Link]

[13] Yeongmyeong Park‡, Youngjin Kim‡, Changhyun Kim, Gun-Yeal Lee, Hyeongyu Choi, Taewon Choi, Yoonchan Jeong*, and Byoungho Lee, "End-to-end optimization of metalens for broadband and wide-angle imaging," Advanced Optical Materials 13(9), 2402853 (2025). [Link]

[12] Changhyun Kim‡, Munseong Bae‡, Minho Choi, Sangbin Lee, Myunghoo Lee, Chihyeon Kim, Hojoong Jung, Haejun Chung*, and Hyounghan Kwon*, "Freeform thin-film lithium niobate mode converter for photon-pair generation," Nanophotonics 14(11), 1949-1960 (2025). [Link]

2024

[11] Youngjin Kim‡, Taewon Choi‡, Gun-Yeal Lee, Changhyun Kim, Junseo Bang, Junhyeok Jang, Yoonchan Jeong*, and Byoungho Lee, "Metasurface folded lens system for ultrathin cameras," Science Advances 10(44), eadr2319 (2024). [Link]

[10] Taewon Choi, Chulsoo Choi, Junseo Bang, Youngjin Kim, Hyunwoo Son, Changhyun Kim, Junhyeok Jang, Yoonchan Jeong*, and Byoungho Lee, "Multi-wavelength achromatic deflector in the visible using a single-layer freeform metasurface," Nano Letters 24(35), 10980-10986 (2024). [Link]

[9] Changhyun Kim, Jongwoo Hong, Junhyeok Jang, Gun-Yeal Lee, Youngjin Kim, Yoonchan Jeong*, and Byoungho Lee, "Freeform metasurface color router for deep submicron pixel image sensors," Science Advances 10(22), eadn9000 (2024). [Link]

Before 2023

[8] Junhyeok Jang, Gun-Yeal Lee, Youngjin Kim, Changhyun Kim, Yoonchan Jeong*, and Byoungho Lee, "Dispersion-engineered metasurface doublet design for broadband and wide-angle operation in the visible range," IEEE Photonics Journal 15(4), 1-9 (2023). [Link]

[7] Kyuho Kim, Changhyun Kim, Sun-Je Kim*, and Byoungho Lee*, "Design of dynamically focus-switchable Fresnel zone plates based on plasmonic phase-change VO2 metafilm absorbers," Current Optics and Photonics 7(3), 254-262 (2023). [Link]

[6] Changhyun Kim and Byoungho Lee*, "TORCWA: GPU-accelerated Fourier modal method and gradient-based optimization for metasurface design," Computer Physics Communications 282(1), 108552 (2023). [Link]

[5] Sun-Je Kim*, Changhyun Kim, Youngjin Kim, Jinsoo Jeong, Seokho Choi, Woojun Han, Jaisoon Kim, and Byoungho Lee, "Dielectric metalens: properties and three-dimensional imaging applications," Sensors 21(13), 4584 (2021). [Link]

[4] Jongwoo Hong, Hyunwoo Son, Changhyun Kim, Sang-Eun Mun, Jangwoon Sung, and Byoungho Lee*, "Absorptive metasurface color filters based on hyperbolic metamaterials for a CMOS image sensor," Optics Express 29(3), 3643-3658 (2021). [Link]

[3] Changhyun Kim, Sun-Je Kim, and Byoungho Lee*, "Doublet metalens design for high numerical aperture and simultaneous correction of chromatic and monochromatic aberrations," Optics Express 28(12),18059-18076 (2020). [Link]

[2] Sun-Je Kim, Inki Kim, Sungwook Choi, Hyojin Yoon, Changhyun Kim, Yohan Lee, Chulsoo Choi, Junwoo Son, Yong Wook Lee, Junsuk Rho, and Byoungho Lee*, "Reconfigurable all-dielectric Fano metasurfaces for strong full-space intensity modulation of visible light," Nanoscale Horizons 5(7), 1088-1095 (2020). [Link]

[1] Yohan Lee, Sun-Je Kim, Jeong-Geun Yun, Changhyun Kim, Seung-Yeol Lee, and Byoungho Lee*, "Electrically tunable multifunctional metasurface for integrating phase and amplitude modulation based on hyperbolic metamaterial substrate," Optics Express 26(24), 32063-32073 (2018). [Link]