Nonlinear optics of nematic, smectic and cholesteric liquid crystals

Iam-choon Khoo, N. V. Tabiryan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Summary form only given. Recent advances in the nonlinear optics of liquid crystals (LC) are related to optically induced collective molecular reorientation processes. These processes exhibit features such as propagation-induced reorientation and self-oscillations. Jumps and hystereses of an LCs orientational state with changing incidence angle and intensity of light provide new schemes for optical bistability and optical modulation. In certain circumstances, direct orientational interaction may be suppressed by absorption-induced effects. Among several mechanisms for the transformation of the energy of an absorbed light beam into molecular reorientation, the strongest one utilizes generation of hydrodynamic motions. In this way, e.g., infrared-visible modulation is possible at a microwatt power level.

Original languageEnglish (US)
Title of host publicationFirst Int Meet Nonlinear Opt Mater Phenom Devices NLO 90
PublisherPubl by IEEE
Pages78
Number of pages1
StatePublished - 1990
EventFirst International Meeting on Nonlinear Optics: Materials, Phenomena and Devices - NLO '90 - Kauai, HI, USA
Duration: Jul 16 1990Jul 20 1990

Other

OtherFirst International Meeting on Nonlinear Optics: Materials, Phenomena and Devices - NLO '90
CityKauai, HI, USA
Period7/16/907/20/90

Fingerprint

Smectic liquid crystals
Cholesteric liquid crystals
Nonlinear optics
Nematic liquid crystals
Optical bistability
Molecular beams
Light modulation
Liquid crystals
Hysteresis
Hydrodynamics
Modulation
Infrared radiation

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Khoo, I., & Tabiryan, N. V. (1990). Nonlinear optics of nematic, smectic and cholesteric liquid crystals. In First Int Meet Nonlinear Opt Mater Phenom Devices NLO 90 (pp. 78). Publ by IEEE.
Khoo, Iam-choon ; Tabiryan, N. V. / Nonlinear optics of nematic, smectic and cholesteric liquid crystals. First Int Meet Nonlinear Opt Mater Phenom Devices NLO 90. Publ by IEEE, 1990. pp. 78
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Khoo, I & Tabiryan, NV 1990, Nonlinear optics of nematic, smectic and cholesteric liquid crystals. in First Int Meet Nonlinear Opt Mater Phenom Devices NLO 90. Publ by IEEE, pp. 78, First International Meeting on Nonlinear Optics: Materials, Phenomena and Devices - NLO '90, Kauai, HI, USA, 7/16/90.

Nonlinear optics of nematic, smectic and cholesteric liquid crystals. / Khoo, Iam-choon; Tabiryan, N. V.

First Int Meet Nonlinear Opt Mater Phenom Devices NLO 90. Publ by IEEE, 1990. p. 78.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Summary form only given. Recent advances in the nonlinear optics of liquid crystals (LC) are related to optically induced collective molecular reorientation processes. These processes exhibit features such as propagation-induced reorientation and self-oscillations. Jumps and hystereses of an LCs orientational state with changing incidence angle and intensity of light provide new schemes for optical bistability and optical modulation. In certain circumstances, direct orientational interaction may be suppressed by absorption-induced effects. Among several mechanisms for the transformation of the energy of an absorbed light beam into molecular reorientation, the strongest one utilizes generation of hydrodynamic motions. In this way, e.g., infrared-visible modulation is possible at a microwatt power level.

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Khoo I, Tabiryan NV. Nonlinear optics of nematic, smectic and cholesteric liquid crystals. In First Int Meet Nonlinear Opt Mater Phenom Devices NLO 90. Publ by IEEE. 1990. p. 78