Wavelength dependence of phase conjugate reflectivity in absorbing media and thermal grating studies by four wave mixing
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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 dependence 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.
KeywordsOptical phase conjugation absorbing media thermal grating Bragg condition
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- Fisher R A (ed) 1983Optical phase conjugation (New York: Academic Press)Google Scholar
- Prasad B R, Krishna Mohan R, Narayanan P S, Subramanian C K and Chandra Sekhar P 1988Curr. Sci. 57 648Google Scholar
- Zel’dovich B Ya, Pilipetskii N F and Shkunov V V 1985Principles of phase conjugation (Berlin: Springer Verlag)Google Scholar