Fabrication of a broadband tunable polarization rotator based on asymmetrically anchoring of liquid crystal

Tae-Hoon Yoon; Yeongyu Choi; Seung-Won Oh; Ho-Jin Sohn

doi:10.1117/12.2579191

5 March 2021 Fabrication of a broadband tunable polarization rotator based on asymmetrically anchoring of liquid crystal

Tae-Hoon Yoon, Yeongyu Choi, Seung-Won Oh, Ho-Jin Sohn

Author Affiliations +

Proceedings Volume 11707, Emerging Liquid Crystal Technologies XVI; 1170709 (2021) https://doi.org/10.1117/12.2579191
Event: SPIE OPTO, 2021, Online Only

Abstract

We introduce a twisted-nematic LC cell, which can rotate the polarization angle of the polychromatic light. We used interdigitated electrodes to apply an in-plane field to control the twist angle. Thanks to the asymmetrical anchoring in the LC cell, the twist angle could be rotated continuously by increasing the applied electric field. The linearly polarized light incident on the LC cell can be rotated following the twist direction. Since it does not require an additional retardation film such as QWP, there is no degradation of the performance at a specific wavelength even for the polychromatic light.

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Citation Download Citation

Tae-Hoon Yoon, Yeongyu Choi, Seung-Won Oh, and Ho-Jin Sohn "Fabrication of a broadband tunable polarization rotator based on asymmetrically anchoring of liquid crystal", Proc. SPIE 11707, Emerging Liquid Crystal Technologies XVI, 1170709 (5 March 2021); https://doi.org/10.1117/12.2579191

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