Tunable Lasing from a Cholesteric Liquid Crystal Film Embedded with a Liquid Crystal Nanopore Network

Department of Electrical, Electronic and Information Engineering, Osaka University, Suita, Japan.
Advanced Materials (Impact Factor: 17.49). 12/2011; 23(46):5498-501. DOI: 10.1002/adma.201102764
Source: PubMed


Continuous tuning of lasing wavelength is achieved in cholesteric liquid crystal lasers by embedding a network of nanopores with an average size of 10 nm filled with liquid crystals inside a polymerized matrix with helical order. The device possesses both high transparency and a fast response time because the tuning is driven by local reorientation of the liquid crystal molecules in the nanopores.

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