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

Iam-choon Khoo; M. Kaczmarek; M. Y. Shih; A. Shishido; J. Ding; Y. Zhang; M. V. Wood

doi:10.1117/12.449937

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

Iam-choon Khoo, M. Kaczmarek, M. Y. Shih, A. Shishido, J. Ding, Y. Zhang, M. V. Wood

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We have studied the optical nonlinearities of aligned nematic liquid crystalline films in the near IR communication spectral region [1.55 μm]. 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 π's can be generated with mW-power near IR lasers in micron thick films.

Original language	English (US)
Pages (from-to)	87-91
Number of pages	5
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4463
DOIs	https://doi.org/10.1117/12.449937
State	Published - Jan 1 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.449937

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abstract = "We have studied the optical nonlinearities of aligned nematic liquid crystalline films in the near IR communication spectral region [1.55 μm]. 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 π's can be generated with mW-power near IR lasers in micron thick films.",

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Communication-wavelength (1.55 μm) laser induced refractive index change in nematic liquid crystalline films. / Khoo, Iam-choon; Kaczmarek, M.; Shih, M. Y.; Shishido, A.; Ding, J.; Zhang, Y.; Wood, M. V.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4463, 01.01.2001, p. 87-91.

Research output: Contribution to journal › Article › peer-review

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T1 - Communication-wavelength (1.55 μm) laser induced refractive index change in nematic liquid crystalline films

AU - Khoo, Iam-choon

AU - Kaczmarek, M.

AU - Shih, M. Y.

AU - Shishido, A.

AU - Ding, J.

AU - Zhang, Y.

AU - Wood, M. V.

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AB - We have studied the optical nonlinearities of aligned nematic liquid crystalline films in the near IR communication spectral region [1.55 μm]. 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 π's can be generated with mW-power near IR lasers in micron thick films.

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

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