Ultra-wideband and high-efficiency polarization rotator based on liquid crystals

We propose a novel design of an asymmetrically anchored negative liquid crystal (LC) cell capable of linearly rotating the polarization axis of broadband light, with the rotation angle controlled by voltage. Unlike conventional LC cells that require polarization filters or retarders, our LC cell can...

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Bibliographic Details
Published inJournal of Information Display pp. 1 - 6
Main Authors Lee, Sang-Hee, Han, Chan-Hee, Oh, Seung-Won
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.10.2024
Subjects
DoLP
Liquid crystals
polarization rotator
rotator
Twisted nematic
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Summary:We propose a novel design of an asymmetrically anchored negative liquid crystal (LC) cell capable of linearly rotating the polarization axis of broadband light, with the rotation angle controlled by voltage. Unlike conventional LC cells that require polarization filters or retarders, our LC cell can directly modulate the polarization state of light without any additional components. The LC cell exhibits high polarization rotation efficiency over a wide wavelength range (200 nm to 2000nm), superior to the existing polarization modulators. We validate our design through theoretical calculations and numerical simulations, proving that a degree of linear polarization of over 0.95 can be achieved in the UV, visible, and NIR regions. Our design can be applied in optical communications, biological imaging, and spectroscopic technologies.
ISSN:1598-0316
2158-1606
DOI:10.1080/15980316.2024.2409664