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5 March 2021 Fully reconfigurable 2D active metasurface array
Junghyun Park, Byung Gil Jeong, Sun Il Kim, Duhyun Lee, Kyoungho Ha, Hyuck Choo
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Proceedings Volume 11695, High Contrast Metastructures X; 116950O (2021) https://doi.org/10.1117/12.2582346
Event: SPIE OPTO, 2021, Online Only
Abstract
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. Each pixel is a gated plasmonic nanoresonator with an indium tin oxide (ITO) layer embedded in its middle. When proper gate biases are applied to the array, the refractive index of the ITO layer changes, generating a phase gradient necessary for dynamic beam steering. By generating a reconfigurable binary phase grating, we have successfully demonstrated full-area, 2D arbitrary beam steering.
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Junghyun Park, Byung Gil Jeong, Sun Il Kim, Duhyun Lee, Kyoungho Ha, and Hyuck Choo "Fully reconfigurable 2D active metasurface array", Proc. SPIE 11695, High Contrast Metastructures X, 116950O (5 March 2021); https://doi.org/10.1117/12.2582346
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KEYWORDS
Beam steering
Gold
Indium
Mirrors
Optical communications
Optical sensing
Oxides
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