Tunable metasurface inverse design for 80% switching efficiencies and 144^∘ angular steering

2019/10/07 by Chung, Haejun, Miller, Owen D.
#Applied Physics (physics.app-ph) #FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.1910.03132

Abstract

Tunable metasurfaces have demonstrated the potential for dramatically enhanced functionality for applications including sensing, ranging and imaging. Liquid crystals (LCs) have fast switching speeds, low cost, and mature technological development, offering a versatile platform for electrical tunability. However, to date, electrically tunable metasurfaces are typically designed at a single operational state using physical intuition, without controlling alternate states and thus leading to limited switching efficiencies (<30%) and small angular steering (

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