Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Byung Gil Jeong"'
Publikováno v:
High Contrast Metastructures XII.
Autor:
Sun Il Kim, Junghyun Park, Byung Gil Jeong, Duhyun Lee, Ki-Yeon Yang, Yong-Young Park, Kyoungho Ha, Hyuck Choo
Publikováno v:
Nanophotonics. 11:2719-2726
Tunable metasurfaces can change the optical properties of incident light at will such as amplitude, phase, and polarization in a time-dependent fashion. Ultrafast switching speed and the ability for the pixel size reduction of the tunable metasurface
Autor:
Byung Gil Jeong, Mark L. Brongersma, Yong Young Park, Chang Bum Lee, Kyoung-ho Ha, Jisoo Kyoung, Sunil Kim, Sang-Wook Kim, Junghyun Park, Byoung Lyong Choi, Seok Ho Song, Jungwoo Kim, Hyuck Choo, Sungwoo Hwang, Jaeduck Jang, Ji San Lee, Tatsuhiro Otsuka, Duhyun Lee, Changgyun Shin, Ki Yeon Yang, In-Oh Hwang
Publikováno v:
Nature Nanotechnology. 16:69-76
Spatial light modulators are essential optical elements in applications that require the ability to regulate the amplitude, phase and polarization of light, such as digital holography, optical communications and biomedical imaging. With the push towa
Autor:
Byung Gil Jeong, Junghyun Park, Sun Il Kim, Minkyung Lee, Jaeduck Jang, Kyoungho Ha, Hyuck Choo
Publikováno v:
2021 IEEE International Electron Devices Meeting (IEDM).
Publikováno v:
High Contrast Metastructures X.
For the first time, we present an active 2D metasurface array and its demonstrated versatile beam steering. The array is composed of individually-addressable, gate-controlled 10×10 pixels where each pixel modulates the phase of light in reflection.
Autor:
Sunil Kim, Byoung Lyong Choi, Yong-young Park, Byung Gil Jeong, Ji San Lee, Tatsuhiro Otsuka, Sang-Wook Kim, Jungwoo Kim, Hyuck Choo, Kyoung-ho Ha, Changgyun Shin, Sungwoo Hwang, Junghyun Park, In-Oh Hwang, Chang Bum Lee, Jaeduck Jang, Kiyeon Yang, Duhyun Lee
Publikováno v:
2020 IEEE International Electron Devices Meeting (IEDM).
For the first time, we have successfully demonstrated a 3-dimensional (3-D) depth scan using an electrically-tunable active metasurface, which is an array of plasmonic resonators with an active indium-tin-oxide (ITO) layer. Our active device can stee
Autor:
Byung Gil Jeong, Junghyun Park, In-Oh Hwang, Kyoung-ho Ha, Ji San Lee, Hyuck Choo, Duhyun Lee, Sunil Kim
Publikováno v:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII.
We present an electrically tunable metasurface and demonstrate an ultrafast beam steering and distance-ranging. A unit cell of the proposed device consists of plasmonic antennas and an ITO film as an active, tunable layer. By individually applying el
Autor:
Junghyun, Park, Byung Gil, Jeong, Sun Il, Kim, Duhyun, Lee, Jungwoo, Kim, Changgyun, Shin, Chang Bum, Lee, Tatsuhiro, Otsuka, Jisoo, Kyoung, Sangwook, Kim, Ki-Yeon, Yang, Yong-Young, Park, Jisan, Lee, Inoh, Hwang, Jaeduck, Jang, Seok Ho, Song, Mark L, Brongersma, Kyoungho, Ha, Sung-Woo, Hwang, Hyuck, Choo, Byoung Lyong, Choi
Publikováno v:
Nature nanotechnology. 16(1)
Spatial light modulators are essential optical elements in applications that require the ability to regulate the amplitude, phase and polarization of light, such as digital holography, optical communications and biomedical imaging. With the push towa
Publikováno v:
Sensors and Actuators A: Physical. 203:82-91
An indirectly clamped capacitive micromachined ultrasonic transducer (CMUT) with a high electromechanical coupling factor is reported. An indirectly clamped diaphragm includes a circular bottom plate hanging from a ring-type middle plate below the in
Publikováno v:
Sensors and Actuators A: Physical. 199:325-333
The performance and reliability issues of a new capacitive micro-machined ultrasonic transducer (CMUT) are presented in this paper. To enhance the moving efficiency, by obtaining a piston-like motion, an indirectly clamped membrane structure is propo