DSpace
 

RRI Digital Repository >
06. Soft Condensed Matter >
Research Papers (SCM) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2949

Title: New nonlinear optical processes in liquid crystals
Authors: Srivatsa, S.K.
Ranganath, G.S.
Keywords: Liquid crystals
Director fluctuations
Director reorientation
Tilt angle
Optical solitons
Issue Date: Jun-2000
Publisher: Elsevier B.V.
Citation: Optics Communications, 2000, Vol.180, p349-359
Abstract: We have worked out some consequences of the optical nonlinearities due to laser induced changes in the order parameter of a liquid crystal. The change in the order parameter can be affected by laser induced suppression of the director fluctuations in liquid crystals and or changes in the tilt angle of smectic liquid crystals. Both the processes lead to well known nonlinear optical effects like self-focusing, self-divergence, self-phase modulation, wave mixing, and so on. In addition, we predict some new phenomena like self-iridescence and new types of optical spatial solitons. In the case of chiral liquid crystals in the short wavelength limit the laser beam induces a change in the twist and at the long wavelength edge of the Bragg band it leads to temporal oscillations in the twist and the transmitted intensity. In smectic liquid crystals interesting periodic structures in a standing laser wave are to be expected.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/2949
ISSN: 0140-3664
Alternative Location: http://dx.doi.org/10.1016/S0030-4018(00)00706-9
Copyright: 2000 Elsevier B.V.
Appears in Collections:Research Papers (SCM)

Files in This Item:

File Description SizeFormat
2000 OC.180.P349.pdfRestricted Access161.75 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

    RRI Library DSpace