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Saturated two-photon absorption by calcium atoms in a perturber bath

Authors
Journal
Journal of Quantitative Spectroscopy and Radiative Transfer
0022-4073
Publisher
Elsevier
Publication Date
Volume
36
Issue
2
Identifiers
DOI: 10.1016/0022-4073(86)90115-9

Abstract

Abstract This study was performed with calcium vapor at about 750°C perturbed by He at densities between 0.5 x 10 19 and 5 x 10 19 atoms/cm 3 and under continuous laser intensities up to 10 kW/cm 2. The collisional absorption profile of the calcium intercombination line (657.5nm) has been obtained from fluorescence measurements and by using theoretical expressions. The saturation rates give the collisional decay rates of the atomic levels involved. The formation of exciplex species is suggested in order to interpret some of the experimental results.

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