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Proceedings Paper

Communication-wavelength (1.55 um) laser-induced refractive index change in nematic liquid crystalline films
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Paper Abstract

We have studied the optical nonlinearities of aligned nematic liquid crystalline films in the near IR communication spectral region (1.55 micrometers ). The measured refractive index coefficients are on the order of 10-3 cm2/W. The origins of the refractive index changes are thermal indexing effect and director axis reorientation. Phase modulation of several (pi) s can be generated with mW-power near IR lasers in micron thick films.

Paper Details

Date Published: 11 December 2001
PDF: 5 pages
Proc. SPIE 4463, Liquid Crystals V, (11 December 2001); doi: 10.1117/12.449937
Show Author Affiliations
Iam-Choon Khoo, The Pennsylvania State Univ. (United States)
Malgosia Kaczmarek, The Pennsylvania State Univ. (United Kingdom)
Min-Yi Shih, The Pennsylvania State Univ. (United States)
Atsushi Shishido, The Pennsylvania State Univ. (Japan)
Jianwu Ding, The Pennsylvania State Univ. (United States)
Yana Zhang, The Pennsylvania State Univ. (United States)
Michael V. Wood, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 4463:
Liquid Crystals V
Iam-Choon Khoo, Editor(s)

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