Optically-induced molecular reorientation in nematic liquid crystals and nonlinear optical processes in the nanoseconds regime

Iam Choon Khoo; R. R. Michael; P. Y. Yan

doi:10.1109/JQE.1987.1073318

Optically-induced molecular reorientation in nematic liquid crystals and nonlinear optical processes in the nanoseconds regime

Iam Choon Khoo, R. R. Michael, P. Y. Yan

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

42 Scopus citations

Abstract

We present 3 detailed theoretical analysis and experimental study of purely optically-induced nematic axis reorientation and the associated nonlinear optical processes such as self-phase modulations and optical switching. It is shown that under a sufficiently intense laser field (~100 MW/cm2), nematic liquid crystals will respond in the nanosecond regime. Single nanosecond laser pulse self-phase modulation and intensity switching effects are observed, The magnitude and dynamics of the response are in agreement with theoretical expectations. Optical power limiting and switching effects associated with self-phase modulations are also demonstrated.

Original language	English (US)
Pages (from-to)	267-272
Number of pages	6
Journal	IEEE Journal of Quantum Electronics
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/JQE.1987.1073318
State	Published - Feb 1987

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/JQE.1987.1073318

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abstract = "We present 3 detailed theoretical analysis and experimental study of purely optically-induced nematic axis reorientation and the associated nonlinear optical processes such as self-phase modulations and optical switching. It is shown that under a sufficiently intense laser field (~100 MW/cm2), nematic liquid crystals will respond in the nanosecond regime. Single nanosecond laser pulse self-phase modulation and intensity switching effects are observed, The magnitude and dynamics of the response are in agreement with theoretical expectations. Optical power limiting and switching effects associated with self-phase modulations are also demonstrated.",

author = "Khoo, {Iam Choon} and Michael, {R. R.} and Yan, {P. Y.}",

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AU - Khoo, Iam Choon

AU - Michael, R. R.

AU - Yan, P. Y.

PY - 1987/2

Y1 - 1987/2

N2 - We present 3 detailed theoretical analysis and experimental study of purely optically-induced nematic axis reorientation and the associated nonlinear optical processes such as self-phase modulations and optical switching. It is shown that under a sufficiently intense laser field (~100 MW/cm2), nematic liquid crystals will respond in the nanosecond regime. Single nanosecond laser pulse self-phase modulation and intensity switching effects are observed, The magnitude and dynamics of the response are in agreement with theoretical expectations. Optical power limiting and switching effects associated with self-phase modulations are also demonstrated.

AB - We present 3 detailed theoretical analysis and experimental study of purely optically-induced nematic axis reorientation and the associated nonlinear optical processes such as self-phase modulations and optical switching. It is shown that under a sufficiently intense laser field (~100 MW/cm2), nematic liquid crystals will respond in the nanosecond regime. Single nanosecond laser pulse self-phase modulation and intensity switching effects are observed, The magnitude and dynamics of the response are in agreement with theoretical expectations. Optical power limiting and switching effects associated with self-phase modulations are also demonstrated.

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Optically-induced molecular reorientation in nematic liquid crystals and nonlinear optical processes in the nanoseconds regime

Abstract

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