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1 August 2021 Enhancing sensitivity of photoinduced molecular reorientation of oligothiophene-doped liquid crystals irradiated with a collimated laser beam
Kohsuke Matsumoto, Koji Usui, Atsushi Shishido
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Proceedings Volume 11807, Liquid Crystals XXV; 1180712 (2021) https://doi.org/10.1117/12.2596371
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States
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Abstract
Liquid crystals (LCs) have been utilized for the innovative optical devices because the molecular reorientation triggers a change in their optical properties. Among them, oligothiophene-doped LCs can induce the molecular reorientation by irradiation with a laser beam, which is useful for all-optical devices. However, the photoinduced reorientational behavior was observed only by irradiation with a high-intensity laser beam. In this study, we investigated the effect of incident light properties on photoresponsive behavior of oligothiophene-doped LCs by irradiation with a collimated laser beam from the perspective of improvement of the photoresponsive sensitivity of the molecular reorientation. As a result, the irradiation of oligothiophene-doped LCs with a collimated laser beam enhanced the sensitivity of the molecular reorientation.
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Kohsuke Matsumoto, Koji Usui, and Atsushi Shishido "Enhancing sensitivity of photoinduced molecular reorientation of oligothiophene-doped liquid crystals irradiated with a collimated laser beam", Proc. SPIE 11807, Liquid Crystals XXV, 1180712 (1 August 2021); https://doi.org/10.1117/12.2596371
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KEYWORDS
Liquid crystals
Molecular lasers
Collimation
Laser irradiation
Optical components
Optical properties
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