Tunable retarder made of pentaprisms and liquid crystal

Mitsunori Saito; Keisuke Hayashi

doi:10.1117/12.891996

16 September 2011 Tunable retarder made of pentaprisms and liquid crystal

Mitsunori Saito, Keisuke Hayashi

Proceedings Volume 8114, Liquid Crystals XV; 811412 (2011) https://doi.org/10.1117/12.891996
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

A polarization beam splitter and tunable retarders were combined into a single element by using Si pentaprisms and liquid crystal (LC). An LC layer that was sandwiched between the two pentaprisms acted as a polarization beam splitter that reflected s-polarized light and transmitted p-polarized light. The other two LC layers that were attached to the outer surfaces of the pentaprisms acted as tunable retarders; i.e., they changed the polarization states of the reflected and transmitted light beams. When these beams were reflected back to the former LC layer (the beam splitter), wavelength selection took place owing to the wavelength dependence of the polarization state. This performance was confirmed by optical experiments in the infrared region.

Citation Download Citation

Mitsunori Saito and Keisuke Hayashi "Tunable retarder made of pentaprisms and liquid crystal", Proc. SPIE 8114, Liquid Crystals XV, 811412 (16 September 2011); https://doi.org/10.1117/12.891996

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