Electrical tuning of selective reflection of light is achieved in a very broad spectral range from ultraviolet to visible and infrared by an oblique helicoidal state of a cholesteric liquid crystal in a wide temperature range (including room temperature). The phenomenon offers potential applications in tunable smart windows, lasers, optical filters and limiters, as well as in displays.
Keywords: dimeric materials; electrical tuning of selective light reflection; heliconical cholesteric liquid crystal.
© 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.