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

Iam-Choon Khoo; Malgosia Kaczmarek; Min-Yi Shih; Atsushi Shishido; Jianwu Ding; Yana Zhang; Michael V. Wood

doi:10.1117/12.449937

11 December 2001 Communication-wavelength (1.55 μm) laser-induced refractive index change in nematic liquid crystalline films

Iam-Choon Khoo, Malgosia Kaczmarek, Min-Yi Shih, Atsushi Shishido, Jianwu Ding, Yana Zhang, Michael V. Wood

Author Affiliations +

Proceedings Volume 4463, Liquid Crystals V; (2001) https://doi.org/10.1117/12.449937
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

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Iam-Choon Khoo, Malgosia Kaczmarek, Min-Yi Shih, Atsushi Shishido, Jianwu Ding, Yana Zhang, and Michael V. Wood "Communication-wavelength (1.55 μm) laser-induced refractive index change in nematic liquid crystalline films", Proc. SPIE 4463, Liquid Crystals V, (11 December 2001); https://doi.org/10.1117/12.449937

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