23 September 2016 Thermal modulation of selective transmittance spectra by combination of cholesteric liquid crystal cells
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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.
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Akifumi Ogiwara, Hiroshi Kakiuchida, "Thermal modulation of selective transmittance spectra by combination of cholesteric liquid crystal cells", Proc. SPIE 9940, Liquid Crystals XX, 99401I (23 September 2016); doi: 10.1117/12.2237090; https://doi.org/10.1117/12.2237090
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