Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Duhyun, Lee"'
Autor:
Geunwoo Kim, Soogil Lee, Sanghwa Lee, Byonggwon Song, Byung-Kyu Lee, Duhyun Lee, Jin Seo Lee, Min Hyeok Lee, Young Keun Kim, Byong-Guk Park
Publikováno v:
Nanomaterials, Vol 13, Iss 18, p 2591 (2023)
This study investigates the effects of annealing on the tunnel magnetoresistance (TMR) ratio in CoFeB/MgO/CoFeB-based magnetic tunnel junctions (MTJs) with different capping layers and correlates them with microstructural changes. It is found that th
Externí odkaz:
https://doaj.org/article/2a0680d9a6aa4cb1aded18b08b6c0b72
Autor:
Pin Chieh Wu, Ragip A. Pala, Ghazaleh Kafaie Shirmanesh, Wen-Hui Cheng, Ruzan Sokhoyan, Meir Grajower, Muhammad Z. Alam, Duhyun Lee, Harry A. Atwater
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Here, the authors demonstrate an electrically tunable metasurface with III–V semiconducting MQW structures as resonant metasurface elements. The amplitude and phase of the light reflected from the metasurface can be continuously tuned by applying D
Externí odkaz:
https://doaj.org/article/31fb2f28fc3f471cb2c7530e9f7eabf1
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a7de20c14dc8f5b4288c6c64a2857a0
https://doi.org/10.1515/nanoph-2021-0664
https://doi.org/10.1515/nanoph-2021-0664
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779e0a161d5a4583a23452379c5a7f8c
https://doi.org/10.1038/s41565-020-00787-y
https://doi.org/10.1038/s41565-020-00787-y
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.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b56832b24cd63319f3a9cb48c28a308
https://doi.org/10.1117/12.2582346
https://doi.org/10.1117/12.2582346
Autor:
Duhyun, Lee, Meewon, Lee
Publikováno v:
Asian Theatre Journal, 1985 Oct 01. 2(2), 139-171.
Externí odkaz:
https://www.jstor.org/stable/1124070
Autor:
Hong-jae Shin, Woon-kyung Lee, Sungwoo Hwang, H. K. Kang, Hyung-Jong Lee, S. J. Kim, W. Chang, R. Ashcraft, S.O. Park, J.H. Song, Gwan-Hyeob Koh, Sung-Kee Han, Jinseong Heo, J.Y. Lee, Y.S. Choi, T. Ha, Duhyun Lee
Publikováno v:
2020 IEEE International Electron Devices Meeting (IEDM).
During last decade, various deep learning algorithms successfully broke the thick ice of AI winter so that they became an important part both in industries and daily lives [1]. They also invoked the development of AI accelerators (NPUs: neural proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d337892c91ec6342538cc1444c76258
https://doi.org/10.1109/iedm13553.2020.9372061
https://doi.org/10.1109/iedm13553.2020.9372061
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e016d285d06612288491d35ffc09b14e
https://doi.org/10.1109/iedm13553.2020.9372059
https://doi.org/10.1109/iedm13553.2020.9372059
Autor:
Won-Sok Lee, Duhyun Lee, Sang Ho Jeon, Son Juho, D. Minn, Dae-Woong Kang, Sung-Gi Yang, Y. Aoki, J. Jang, Ki-chul Kim, Hyun-Chul Park, Jung-hyeon Kim, Soon-yeon Park, S. Kim, J. H. Lee, J.M. Park, B.S. Suh, M. Kim, Chung-woo Kim, Jung-Hyoung Lee, Kyung-Hoon Min, A.-S. Ryu, Young-Wug Kim, S.Y. Lee
Publikováno v:
2020 IEEE International Electron Devices Meeting (IEDM).
This paper presents design challenges and solutions for the fifth generation (5G) phased-array transceiver ICs in millimeter-wave (MMW) frequency bands. A 28nm bulk CMOS device technology is selected to integrate multiple RF phased-array elements in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d86ad2928f3bbabca4604eaa3f43d36b
https://doi.org/10.1109/iedm13553.2020.9371948
https://doi.org/10.1109/iedm13553.2020.9371948
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae98b42f0a411fc4e7445c624186ce2c
https://doi.org/10.1117/12.2567084
https://doi.org/10.1117/12.2567084