journal article·2018-04

Reverse-mode thermoresponsive light attenuators produced by optical anisotropic composites of nematic liquid crystals and reactive mesogens

Hiroshi Kakiuchida, Akifumi Ogiwara

Optical Materials· Volume 78
Publisher page

Abstract

Abstract Polymer network liquid crystals (PNLCs) whose optical transmittance state switches between transparence at low temperatures and haze at high temperatures were fabricated from mixtures of nematic liquid crystals (LCs) and reactive mesogens (RMs). This PNLC structure is simple but effective, namely, consists of micro-scale domains of orientation-ordered LCs and anisotropically polymerized RMs. The domains form through photopolymerization induced phase separation with inhomogeneous irradiation projected by laser speckling techniques. This irradiation method enables you to control the size and shape of phase-separation domains, and these PNLCs can be applied to novel thermoresponsive optical devices; optical isolators, thermometric sheets, and smart windows.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Liquid Crystal Research Advancements · Semiconductor Lasers and Optical Devices · Advanced Optical Imaging Technologies

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