Electrically switchable mirrors based on polymer-stabilized cholesteric liquid crystals

Shin-Ying Lu; Andrii Golovin; Liang-Chy Chien

doi:10.1117/12.708240

14 February 2007 Electrically switchable mirrors based on polymer-stabilized cholesteric liquid crystals

Shin-Ying Lu, Andrii Golovin, Liang-Chy Chien

Proceedings Volume 6487, Emerging Liquid Crystal Technologies II; 64870P (2007) https://doi.org/10.1117/12.708240
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

We developed an electrically switchable mirror based on polymer-stabilized, short-pitched cholesteric liquid crystals using electro-optical cells with planar alignment. The devices enable the switching of a pre-selected reflective wavelength of the cholesteric to reflect a different wavelength in corresponding to the magnitude of applied electric field. The principle of the wavelength shift to a shorter wavelength is a result of field-induced pitch shortening near the boundaries. The spectral wavelength shift of the reflected wavelength is about 140-nm and the wavelength shift is linearly proportional to the magnitude of applied voltage. The optical response of the device is also studied.

Citation Download Citation

Shin-Ying Lu, Andrii Golovin, and Liang-Chy Chien "Electrically switchable mirrors based on polymer-stabilized cholesteric liquid crystals", Proc. SPIE 6487, Emerging Liquid Crystal Technologies II, 64870P (14 February 2007); https://doi.org/10.1117/12.708240

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