All dielectric reconfigurable metasurface with high efficiency and directivity

Junghyun Park; Byung Gil Jung; Sun Il Kim; Minkyung Lee; Kanghee Won; Young Kim; Kyoungho Ha; Hyuck Choo

doi:10.1117/12.2663044

15 June 2023 All dielectric reconfigurable metasurface with high efficiency and directivity

Junghyun Park, Byung Gil Jung, Sun Il Kim, Minkyung Lee, Kanghee Won, Young Kim, Kyoungho Ha, Hyuck Choo

Proceedings Volume PC12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X; PC1251402 (2023) https://doi.org/10.1117/12.2663044
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Beam steering devices can be used for various applications such as light detection and ranging and free space optical communication. The conventional methods for the beam steering are based on the mechanical rotation of mirrors and cause bulk form-factor and limited operation speed. The metasurfaces are arrays of dielectric or metallic antennas that can tailor the optical properties such as amplitude and phase at the deep subwavelength range. Here, we present the all-dielectric metasurface that can modulate the reflection phase >270° with high reflectivity >60% as a function of the individually applied voltage in the near infrared regime.

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Citation Download Citation

Junghyun Park, Byung Gil Jung, Sun Il Kim, Minkyung Lee, Kanghee Won, Young Kim, Kyoungho Ha, and Hyuck Choo "All dielectric reconfigurable metasurface with high efficiency and directivity", Proc. SPIE PC12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X, PC1251402 (15 June 2023); https://doi.org/10.1117/12.2663044

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KEYWORDS

Dielectrics

Beam steering

LIDAR

Microelectromechanical systems

Mirrors

Optical properties

Reflectivity

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