Wavelength dependence of phase conjugate reflectivity in absorbing media and thermal grating studies by four wave mixing

Mohan, Krishna R and Prasad, Raghavendra B and Subramanian, CK and Narayanan, PS (1990) Wavelength dependence of phase conjugate reflectivity in absorbing media and thermal grating studies by four wave mixing. In: Pramana, 34 (6). pp. 461-471.

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Abstract

The development of optical phase conjugation using thermally formed gratings in absorbing media, especially the dye solutions, has besides the high efficiencies, many other characteristics which are worthy of study. Here the wavelength depcndence of phase conjugate reflectivity in relation to absorption spectrum of rhodamine-6G and rhodamine-B in water, methanol and ethanol is reported. Further the Bragg condition has been verified for the dominant diffracted beam which shows that the thermal'grating behaves like an optically thick grating.

Item Type:	Journal Article
Publication:	Pramana
Publisher:	Indian Academy Of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy Of Sciences.
Keywords:	Optical phase conjugation; absorbing media; thermal grating; Bragg condition
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Mar 2008
Last Modified:	19 Sep 2010 04:43
URI:	http://eprints.iisc.ac.in/id/eprint/13164

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