ISSN:
1432-0649
Keywords:
42.60
;
42.65
;
33.80K
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We report observation of intense spontaneous amplified radiation of Li2 diffuse violet band in the 4100–4900 Å region. The radiation is strongly enhanced when the lithium vapor in a heat pipe is optically pumped with a pulsed dye laser with the output wavelength tuned to near the Li 2s–4s two-photon resonance transition. The diffuse violet band can probably be assigned to a recently reported triplet bound-free (23 Π g →a 3 Σ u + ) transition. It is found that the productions of the molecular diffuse band are contributed from Li atoms as well as Li2 molecules. The excitation functions and their dependence on laser power density are presented and the mechanisms for producing the diffuse bands are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00692492
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