ISSN:
1432-0649
Keywords:
33.50
;
42.55M
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The nanosecond pulses of a dye laser oscillator based on the excited-state intramolecular proton-transfer reaction (IPT) of salicylamide and 2′-hydroxylphenyl benzimidazole dyes have been studied as a function of several experimental parameters. To explain the operation of this laser a numerical four-level kinetic model was developed until the lasing properties of these dyes, in the presence of a variable oxygen concentration and pumped with a double pulse technique, could be reproduced. This was possible only by assuming that the efficiency of the laser is controlled by the absorption cross-section of a transient state with a lifetime in the nanosecond-picosecond range, which was tentatively identified as a ground state tautomeric species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00324955
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