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Physical Review A

Intensity-induced quenching of absorption of diatomic molecules in two near-resonance laser fields

Munir Hasan Nayfeh, Kevin King, G. Barry Hillard, I. S. Shahin, Ali Hasan Nayfeh

Published Oct 1, 1982• 6 citations
Publisher

Abstract

The interaction of a diatomic molecule with two near-resonance laser fields is investigated with the use of a one-dimensional anharmonic oscillator model. Our study shows that, over a certain range of intensity of one of the laser fields, induced quenching of the absorption takes place.
DOI
10.1103/physreva.26.1988

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We examine the third-overtone absorption of diatomic molecules in the presence of a tunable field in near-third-overtone resonance using a one-dimensional anharmonic-oscillator model. We find that the tunable mode causes modulation of the absorption as a result of an intensity-induced quenching effect. At high intensities the absorption diminishes accompanied with the disappearance of the modulation. Our investigations also show that these effects are insensitive to the dephasing of the interaction.
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