Electrically Reconfigurable Active Metasurface for 3D Distance Ranging

Sun Il Kim,Junghyun Park,Byung Gil Jeong,Duhyun Lee,Jungwoo Kim,Changgyun Shin,Chang Bum Lee,Tatsuhiro Otsuka,Sangwook Kim,Ki-Yeon Yang,Yong-Young Park,Jisan Lee,Inoh Hwang,Jaeduck Jang,Kyoungho Ha,Hyuck Choo,Byoung Lyong Choi,Sung-Woo Hwang

2020 IEEE International Electron Devices Meeting (IEDM)（2020）

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摘要

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 steer a beam in reflection with a positive side-mode suppression ratio by independently controlling the amplitude and the phase from 0 to 360° using two separate bias controls. These are very promising results for small and high speed 3D depth sensing for mobile and automotive applications.

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关键词

reconfigurable active metasurface,3D distance ranging,depth scan,electrically-tunable active metasurface,plasmonic resonators,active indium-tin-oxide layer,active device,positive side-mode suppression ratio,high speed 3D depth sensing,mobile applications,automotive applications,3-dimensional depth scan

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