Bleachable dichroic dye-doped nematics as materials for intra- and extracavity laser elements

Svetlana V. Serak; Anatoliy A. Kovalev; Natalia Usova; Victor Yu. Reshetnyak; Vladimir A. Grozhik

doi:10.1117/12.428308

30 May 2001 Bleachable dichroic dye-doped nematics as materials for intra- and extracavity laser elements

Svetlana V. Serak, Anatoliy A. Kovalev, Natalia Usova, Victor Yu. Reshetnyak, Vladimir A. Grozhik

Proceedings Volume 4418, Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals; 44180N (2001) https://doi.org/10.1117/12.428308
Event: Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 2000, Alushta, Crimea, Ukraine

Abstract

The paper presents the results of investigation of bleachable dichroic dye-doped liquid crystal (LC) cells operating as intra-cavity (passive shutter) and extra-cavity (wave-front conjugation mirror) laser elements. Regularities in the saturation of bleachable dichroic eye absorption in a LC have been established taking into account the order parameter. Control of monopulse parameters from free-running spiking mode to monopulse mode by changing the working temperature of the passive LC shutter or the layer director orientation has been achieved. It was shown that in case of wave-front conjugation of nanosecond pulses in LC's doped with bleachable dyes the thermal nonlinearity is considerably higher than the resonance nonlinearity in the range of temperatures close to the phase transition point ((delta) T degree(s)=3 degree(s)C), which results in higher total conjugation coefficient as compared with isotropic bleachable dyes solutions.

Citation Download Citation

Svetlana V. Serak, Anatoliy A. Kovalev, Natalia Usova, Victor Yu. Reshetnyak, and Vladimir A. Grozhik "Bleachable dichroic dye-doped nematics as materials for intra- and extracavity laser elements", Proc. SPIE 4418, Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 44180N (30 May 2001); https://doi.org/10.1117/12.428308

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