Angular-insensitive birefringent optical filters using liquid crystal materials

Yukito Saitoh; Yujiro Yanai; Michio Nagai; Yoji Ito

doi:10.1117/12.2692141

13 March 2024 Angular-insensitive birefringent optical filters using liquid crystal materials

Yukito Saitoh, Yujiro Yanai, Michio Nagai, Yoji Ito

Proceedings Volume 12907, Emerging Liquid Crystal Technologies XIX; 129070E (2024) https://doi.org/10.1117/12.2692141
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We have developed angular-insensitive birefringent filters using discotic and calamitic liquid crystals. The filters show no angle dependence in oblique directions and the field of view exceeds +/- 60 degrees. Since the multilayer discotic and calamitic liquid crystal films have the same retardation in the oblique and normal directions, the filter achieves completely angle-insensitive optical properties. This optical filter is expected to be used in high precision and thin small devices in telecommunications and sensor applications.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yukito Saitoh, Yujiro Yanai, Michio Nagai, and Yoji Ito "Angular-insensitive birefringent optical filters using liquid crystal materials", Proc. SPIE 12907, Emerging Liquid Crystal Technologies XIX, 129070E (13 March 2024); https://doi.org/10.1117/12.2692141

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