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Proceedings Paper

Variation of spatial soliton in liquid crystals due change of polarization of the incident laser beam
Author(s): A. A. Rodríguez-Rosales; C. J. Román Moreno; R. Ortega-Martínez
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Paper Abstract

We present experimental evidence obtained in the generation and variation of dark to bright optical spatial solitons due the change of polarization plane of He-Ne laser beam incident in the sample of liquid crystals 5CB doped with methyl red at 0.1% wt inside a cell of 15 μm widths. This work is based in previous papers about the variation of nonlinear refraction index γ in liquid crystals, where we have demonstrated that under certain conditions it is possible to realize inversion of γ, from γ > 0 to γ < 0, by proper adjustment of incident light wave polarization and the theoretical and experimental characterization of spatial solitons. It was possible to observe a clear correlation between the polarization state of incident light and the characteristic profile of dark or bright soliton; we shows here the experimental setup, the results in photographs and their related graphics. The experimental results will open the design of a new system that will generate in the same material a controlled dark or bright spatial optical solitons. We consider this new phenomena very important and as well as its potential technological application in all-optical switching in telecommunications and optoelectronic.

Paper Details

Date Published: 18 November 2013
PDF: 6 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785AI (18 November 2013); doi: 10.1117/12.2021705
Show Author Affiliations
A. A. Rodríguez-Rosales, Univ. Nacional Autónoma de México (Mexico)
C. J. Román Moreno, Univ. Nacional Autónoma de México (Mexico)
R. Ortega-Martínez, Univ. Nacional Autónoma de México (Mexico)

Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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