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Correlations between the performance characteristics of a liquid crystal laser and the macroscopic material properties.

Morris, SM and Ford, AD and Pivnenko, MN and Hadeler, O and Coles, HJ (2006) Correlations between the performance characteristics of a liquid crystal laser and the macroscopic material properties. Phys Rev E Stat Nonlin Soft Matter Phys, 74. 061709-. ISSN 1539-3755

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Abstract

In order to understand how the performance of a liquid-crystal laser depends on the physical properties of the low molar mass nematic host, we have studied the energy threshold and slope efficiency of ten optically pumped liquid-crystal lasers based on different hosts. Specifically, this leads to a variation in the birefringence, the orientational order parameter, and the order parameter of the transition dipole moment of the dye. It is found that low threshold energies and high slope efficiencies correlate with high order parameters and large birefringences. To a first approximation this can be understood by considering analytical expressions for the threshold and slope efficiency, which are derived from the space-independent rate equations for a two-level system, in terms of the macroscopic liquid crystal properties.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:56
Last Modified: 10 Mar 2014 17:24
DOI:

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