Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals

I. C. Khoo; P. H. Chen; M. Y. Shih; A. Shishido; S. Slussarenko; M. V. Wood

doi:10.1080/10587250108028266

Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals

I. C. Khoo, P. H. Chen, M. Y. Shih, A. Shishido, S. Slussarenko, M. V. Wood

Research output: Contribution to journal › Conference article › peer-review

39 Scopus citations

Abstract

In nematic liquid crystal films doped with methyl-red dye or azobenzene liquid crystal, we have observed extremely efficient optically induced director axis reorientation effects, and refractive index change coefficients ≫ 1 cm²/W. The basic mechanisms involved are determined to be optically induced space charge fields and flow reorientation, order parameter modification and molecular torques by the photo-excited dopant molecules. These supra-optical nonlinearities (SONs) enable nonlinear image conversion, optical limiting and holographic grating formation with μW power lasers.

Original language	English (US)
Pages (from-to)	1-13
Number of pages	13
Journal	Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals
Volume	358
DOIs	https://doi.org/10.1080/10587250108028266
State	Published - 2001
Event	8th International Topical Meeting on Optics of Liquid Crystals (OLC'99) - Puerto Rico, Puerto Rico Duration: Sep 27 1999 → Oct 1 1999

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1080/10587250108028266

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Khoo, I. C., Chen, P. H., Shih, M. Y., Shishido, A., Slussarenko, S., & Wood, M. V. (2001). Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals. Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, 358, 1-13. https://doi.org/10.1080/10587250108028266

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title = "Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals",

abstract = "In nematic liquid crystal films doped with methyl-red dye or azobenzene liquid crystal, we have observed extremely efficient optically induced director axis reorientation effects, and refractive index change coefficients ≫ 1 cm2/W. The basic mechanisms involved are determined to be optically induced space charge fields and flow reorientation, order parameter modification and molecular torques by the photo-excited dopant molecules. These supra-optical nonlinearities (SONs) enable nonlinear image conversion, optical limiting and holographic grating formation with μW power lasers.",

author = "Khoo, {I. C.} and Chen, {P. H.} and Shih, {M. Y.} and A. Shishido and S. Slussarenko and Wood, {M. V.}",

year = "2001",

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language = "English (US)",

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journal = "Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals",

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note = "8th International Topical Meeting on Optics of Liquid Crystals (OLC'99) ; Conference date: 27-09-1999 Through 01-10-1999",

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Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals. / Khoo, I. C.; Chen, P. H.; Shih, M. Y. et al.
In: Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, Vol. 358, 2001, p. 1-13.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals

AU - Khoo, I. C.

AU - Chen, P. H.

AU - Shih, M. Y.

AU - Shishido, A.

AU - Slussarenko, S.

AU - Wood, M. V.

PY - 2001

Y1 - 2001

N2 - In nematic liquid crystal films doped with methyl-red dye or azobenzene liquid crystal, we have observed extremely efficient optically induced director axis reorientation effects, and refractive index change coefficients ≫ 1 cm2/W. The basic mechanisms involved are determined to be optically induced space charge fields and flow reorientation, order parameter modification and molecular torques by the photo-excited dopant molecules. These supra-optical nonlinearities (SONs) enable nonlinear image conversion, optical limiting and holographic grating formation with μW power lasers.

AB - In nematic liquid crystal films doped with methyl-red dye or azobenzene liquid crystal, we have observed extremely efficient optically induced director axis reorientation effects, and refractive index change coefficients ≫ 1 cm2/W. The basic mechanisms involved are determined to be optically induced space charge fields and flow reorientation, order parameter modification and molecular torques by the photo-excited dopant molecules. These supra-optical nonlinearities (SONs) enable nonlinear image conversion, optical limiting and holographic grating formation with μW power lasers.

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SP - 1

EP - 13

JO - Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals

T2 - 8th International Topical Meeting on Optics of Liquid Crystals (OLC'99)

Y2 - 27 September 1999 through 1 October 1999

ER -

Supra optical nonlinearities (SON) of methyl red- and azobenzene liquid crystal - Doped nematic liquid crystals

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