波前
光学
双折射
液晶
实现(概率)
计算机科学
物理
旋涡
液晶显示器
光电子学
数学
统计
梁(结构)
作者
Javad Shabanpour,Morteza Sedaghat,Vahid Nayyeri,Homayoon Oraizi,Omar M. Ramahi
出处
期刊:Optics Express
[The Optical Society]
日期:2021-04-28
卷期号:29 (10): 14525-14525
被引量:28
摘要
We propose a new generation of reprogrammable multi-functional bias encoded metasurfaces for dynamic wave manipulation using liquid crystals (LC). This metadevice is an array of unit-cells based on LCs to provide the desired phase steps based on its large birefringence property. The presented 3-bit coding metasurface (CM) use 8 states of "000"-"111" to control and manipulate the scattered wave at λ =1.4 µ m for several applications. The metasurface is introduced in detail and followed by several examples to show its versatility. Steered pencil, regular, and focused vortex beams with different topological charges are realized. The theoretical predictions are confirmed by numerical simulations. The proposed CM enables the realization of multifunctional optical wavefront manipulation and future intelligent optical devices.
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