A continuous plane of polarization rotator and detector based on the liquid crystal Θ-cell

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-11-19 DOI:10.1016/j.optlastec.2024.112138

Deepak Kararwal, Rahul Panchal, Aloka Sinha

引用次数: 0

Abstract

Modulation of the polarization state of optical beams is crucial in advanced optical applications such as polarization microscopy, polarization rotation, and medical imaging. We demonstrate a continuous polarization rotator (PR) by utilizing the liquid crystals (LC) in Θ-cell configuration comprising of circular and parallel alignment of LC on two aligning glass substrates. A rotation of plane of polarization (PoP) up to ∼ 160˚ is observed using Stokes polarimetry. This is further substantiated by the mathematical analysis using Mueller matrix formalism. Further, the device is demonstrated as a PoP detector with high precision detection angle. The PoP is analyzed through single-shot imaging of the intensity distribution of transmitted light through the LC Θ-cell.

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基于液晶Θ电池的连续平面偏振旋转器和检测器

在偏振显微镜、偏振旋转和医学成像等先进光学应用中，调制光束的偏振状态至关重要。我们展示了一种连续偏振旋转器（PR），它利用液晶（LC）在两个对齐玻璃基板上的环形和平行排列组成的 Θ-Cell 配置。通过斯托克斯偏振测量法，观察到偏振平面（PoP）的旋转可达 ∼ 160˚。使用穆勒矩阵形式的数学分析进一步证实了这一点。此外，该装置还被证明是具有高精度探测角的 PoP 探测器。通过对穿过 LC Θ-Cell 的透射光的强度分布进行单次成像，对 PoP 进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems