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On the line profile coefficient for stimulated emission (1983)

Oxenius, J. ; Cooper, J. ; Hubeny, I.

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Publication Date: 2011-08-18

Description: It is pointed out that the line profile coefficients for spontaneous and stimulated emission are identical in low-intensity radiation fields. In more intense radiation fields, however, the stimulated emission profiles in the radiative transfer equation and in the rate equations for the atomic level populations may differ from each other, owing to their different physical nature. A seeming discrepancy between the stimulated emission profiles of the usual semi-classical aproach and a recent quantum mechanical approach by Cooper et al. (1982), which should also be valid for intense 'broadband' fields, is discussed and shown to have negligible consequences for low-intensity radiation fields.

Keywords: ASTROPHYSICS

Type: Astronomy and Astrophysics (ISSN 0004-6361); 127; 1, Oc; 224-226

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