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Thermal modulation of selective transmittance spectra by combination of cholesteric liquid crystal cells
Author(s): Akifumi Ogiwara; Hiroshi Kakiuchida
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Paper Abstract

The effects of the combination of cholesteric liquid crystal (CLC) cells on selective wavelength are investigated by the spectroscopic analysis under thermal modulation. The several kinds of CLC cells are formed by using the chiral dopants with different magnitudes and signs of helical twisting power (HTP). The combination of CLC cells with different temperature dependence shows that the infrared light range longer than 700nm is widely reflected and the visible light is little modulated when the temperature increase from 25 °C to 45 °C. The results demonstrate that the thermal modulation of selective transmittance spectra is controllable by the combination of CLC cells with different temperature dependence.

Paper Details

Date Published: 23 September 2016
PDF: 8 pages
Proc. SPIE 9940, Liquid Crystals XX, 99401I (23 September 2016); doi: 10.1117/12.2237090
Show Author Affiliations
Akifumi Ogiwara, Kobe City College of Technology (Japan)
Hiroshi Kakiuchida, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 9940:
Liquid Crystals XX
Iam Choon Khoo, Editor(s)

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