Influence of thiourea on the emission characteristics of a laser based on an aqueous solution of rhodamine 6G

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1983v013n08ABEH004599· OSTI ID:5595101

Viktorova, A A; Savikin, A P; Tsaregradskii, V B

An investigation was made of the spectral (luminescence and lasing) characteristics of an aqueous solution of rhodamine 6G with an addition of thiourea. When the thiourea concentration in the solvent was > or =30%, the absorption and fluorescence spectra changed greatly, the lasing threshold decreased approximately fourfold, and the output power increased by an order of magnitude. The good thermooptical properties of water as a solvent, in combination with the disaggregation properties of thiourea, made it possible to realize (without circulation of the solution) a pulse-periodic lasing regime at a repetition frequency of < or approx. =50 Hz and with output radiation parameters typical of a laser with continuous circulation of an ethanol solution of rhodamine 6G.

• Research Organization: N. I. Lobachevski State University, Gorki
• OSTI ID: 5595101
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 13:8; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION SPECTRA
AMINES
ANTITHYROID DRUGS
AQUEOUS SOLUTIONS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
DISPERSIONS
DRUGS
DYE LASERS
DYES
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ENERGY
FLUORESCENCE
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HORMONE ANTAGONISTS
LASER RADIATION
LASERS
LIQUID LASERS
LUMINESCENCE
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POWER
PULSES
RADIATIONS
REAGENTS
RHODAMINES
SOLUTIONS
SPECTRA
THIOUREA
THIOUREAS
THRESHOLD ENERGY