ISSN:
0392-6737
Keywords:
Other topics in atomic spectra and interactions of atoms with photons
;
Photon interactions with atoms
;
Atomic and molecular measurement and techniques
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary The optogalvanic signal (OGS) induced in a uranium-neon hollow-cathode discharge was measured as a function of the laser power density for the 0→16900 cm−1 (591.5 nm) uranium transition. Theoretical relations derived by solving a two-level system rate equations showed the OGS dependence on the laser photon flux, for a modulated c.w. light and for stimulated transitions starting from the ground state. A fitting of the theoretical relations to the experimental measurements allowed the determination of the σ0 τ product, that is, the saturation parameter of the transition. The results showed good agreement between the σ0 τ values obtained by the optogalvanic and the usual optical absorption processes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02462347
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