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Electrically driving bandwidth tunable guided-mode resonance filter based on a twisted nematic liquid crystal polarization rotator

机译:基于扭曲向列液晶偏振旋转器的电驱动带宽可调导模谐振滤波器

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摘要

A novel bandwidth-tunable filter is proposed based on nonpolarizing guided-mode resonance effect. The compact, electrically driving bandwidth-tunable optical filter is realized by taking advantage of the effect of bandwidth-to-polarization sensitivity and using a twisted nematic liquid crystal polarization rotator for simple and precise polarization control. The operation principle and the design of the device are presented. The center wavelength is fixed at 623.1 nm with a relatively symmetric line shape. The full-width at half-maximum bandwidth is tuned from 12 to 44.8 nm by controlling the voltage in the polarization rotator. (C) 2015 Optical Society of America
机译:提出了一种基于非偏振导模谐振效应的带宽可调滤波器。紧凑的,电驱动的带宽可调光学滤波器是通过利用带宽对偏振灵敏度的影响并使用扭曲向列液晶偏振旋转器实现简单而精确的偏振控制而实现的。介绍了该装置的工作原理和设计。中心波长以相对对称的线形固定在623.1 nm。通过控制偏振旋转器中的电压,将最大带宽的一半的全宽度从12调整为44.8 nm。 (C)2015年美国眼镜学会

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