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Proceedings Paper

Slow-light birefringence and high precision polarization interferometry in liquid crystal light-valves
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Paper Abstract

Liquid crystals are characterized by a strong anisotropy of their physical properties, which is at the origin of their high birefringence. By performing two-wave mixing experiments in a liquid crystal light-valve, we show that the anisotropic nature of the beam coupling occurring in the liquid crystal layer leads to a slow-light birefringence phenomenon, that is, orthogonal polarization states of the input pulse travel at very different group velocities. Such a slow-light birefringence effect comports a large difference in the group index for the ordinary and the extraordinary wave. The resulting high contrast of the group index can be exploited for realizing a common-path polarization interferometer working at enhanced sensitivity, where very small phase variations can be efficiently detected.

Paper Details

Date Published: 17 August 2010
PDF: 8 pages
Proc. SPIE 7775, Liquid Crystals XIV, 77750X (17 August 2010); doi: 10.1117/12.861391
Show Author Affiliations
Stefania Residori, Institut Non Linéaire, CNRS, Univ. de Nice Sophia Antipolis (France)
Umberto Bortolozzo, Institut Non Linéaire, CNRS, Univ. de Nice Sophia Antipolis (France)
Jean-Pierre Huignard, Jphopto (France)

Published in SPIE Proceedings Vol. 7775:
Liquid Crystals XIV
Iam Choon Khoo, Editor(s)

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