Photoinduced processes in solid polymer solutions of dyes in an interference field of laser radiation

Journal Article · Thu Dec 31 04:00:00 EST 1998 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE1998V028N12ABEH001422· OSTI ID:21435964

Sizykh, A G; Tarakanova, E A ^[1]

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1. Quantum Electronics Division, Krasnoyarsk State University, Krasnoyarsk (Russian Federation)

An investigation was made of the relationships governing the photochemical mechanism of formation of light-induced gratings in solid polymer solutions of a dye with a high quantum yield of the triplet states. The combined analysis of the results of real and numerical experiments was made for a solution of eosin K in gelatin. The protonation rate constant of the dye was measured and the dependence of the diffraction efficiency on the duration of irradiation was explained taking diffusion of the dye into account. A method was proposed for determination of the duffusion coefficient in a spatially modified interference field of the laser radiation. The diffusion coefficients were found. (nonlinear optical phenomena)

• OSTI ID: 21435964
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 28; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBOXYLIC ACIDS
CHEMISTRY
COHERENT SCATTERING
COLLOIDS
DIFFRACTION
DIFFUSION
DISPERSIONS
DYES
EFFICIENCY
ELECTROMAGNETIC RADIATION
EOSIN
GELATIN
GRATINGS
HOMOGENEOUS MIXTURES
HYDROXY ACIDS
INDICATORS
INTERFERENCE
KINETICS
LASER RADIATION
MIXTURES
ORGANIC ACIDS
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHOTOCHEMISTRY
POLYMERS
PROTEINS
RADIATIONS
REACTION KINETICS
SCATTERING
SOLUTIONS