Coherent amplification in fluorescent dye solutions. I. The fluorescence gain spectrum of cresyl violet
1984; Elsevier BV; Volume: 87; Issue: 2 Linguagem: Inglês
10.1016/0301-0104(84)85055-7
ISSN1873-4421
AutoresJ. Baran, A. J. Langley, W. J. Jones,
Tópico(s)Laser-Matter Interactions and Applications
ResumoAbstract The gain spectrum of cresyl violet has been recorded over the wavelength range 590–650 nm using a synchronously-pumped mode-locked dye laser system. The measured gain spectrum is compared with that calculated using data derived from a conventional absorption spectrum. The value of the polarization techniques developed for measuring orientational and state lifetimes of dye molecules is demonstrated. By locating the probe laser in the spectral region associated with absorption or emission it is shown that it is possible to derive information on the ground or excited electronic states. Fluorescence lifetimes and orientational decay times for cresyl violet in methanol and ethanol are determined for the states S 0 and S 1 .
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