Circularly polarized emission from dyes embedded in a chiral polymer

Kristina Bjorknas; Peter Raynes; Sandra Gilmour

doi:10.1117/12.457466

27 February 2002 Circularly polarized emission from dyes embedded in a chiral polymer

Kristina Bjorknas, Peter Raynes, Sandra Gilmour

Proceedings Volume 4464, Organic Light-Emitting Materials and Devices V; (2002) https://doi.org/10.1117/12.457466
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Due to the 1D photonic bandgap nature of cholesteric liquid crystals, strongly circularly polarized photoluminescence can be generated by embedding fluorescent guest molecules in a cholesteric host whose resonance region coincides with the emission of the chromophores. In this paper, fluorescent guest molecules are embedded in a cholesteric reactive mesogen (RM) host, which is subsequently polymerized by UV-exposure to generate a chiral polymer. We have investigated the dependency of the form-anisotropy of the dye on the emission of circularly polarized photoluminescence by comparing highly anisotropic rod like dyes with a range of dyes of different shapes.

Citation Download Citation

Kristina Bjorknas, Peter Raynes, and Sandra Gilmour "Circularly polarized emission from dyes embedded in a chiral polymer", Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); https://doi.org/10.1117/12.457466

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