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Radiation Physics and Chemistry

Quenching of curve crossing probabilities by quantum reflection

Carlo G. Meister, Harald Friedrich

Published Jun 2, 2003• 1 citation
Publisher
DOI
10.1016/s0969-806x(03)00282-2

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The intensity of polarized light reflected from an absorbing vapour has been calculated for optical radio-frequency double resonance and level-crossing. The reflection coefficient was obtained from the refractive index of the vapour, using the equations of classical electromagnetism. The result obtained by integration over a range of frequencies corresponding to broad-band illumination shows that all the familiar magnetic resonance effects are to be expected in the reflected light, except that the resonance curves should be Doppler- and pressure-broadened. A study of the zero-field level-crossing curve, as a function of vapour pressure, should enable one to follow the gradual transition from diffuse to coherent scattering, and to test whether the simple theory of selective reflection is adequate.
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