Study of nonlinear optical characteristics of various media by the methods of z-scan and third harmonic generation of laser radiation

Journal Article · Mon Sep 30 00:00:00 EDT 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N09ABEH002291· OSTI ID:21470232

Ganeev, R A; Kulagin, I A; Tugushev, R I; Usmanov, T ^[1]; Kamanina, Nataliya V ^[2]; Ryasnyansky, A I ^[3]

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1. 'Akadempribor' Research and Production Association, Academy of Science of Uzbekistan, Tashkent (Uzbekistan)
2. Research Institute for Laser Physics, St. Petersburg (Russian Federation)
3. A. Navoi Samarkand State University, Samarkand (Uzbekistan)

The nonlinear optical parameters of colloidal solutions of metals, semiconductor chalcogenide films, vapours and solutions of organic dyes, as well as of fullerene-doped polyimide films are studied by the methods of z-scan and third harmonic generation (THG). The nonlinear refractive indices, nonlinear susceptibilities, and nonlinear absorption coefficients of these materials are measured at the fundamental 1064-nm emission wavelength of a 35-ps pulsed Nd:YAG laser and its second harmonic at 532 nm. The study of the optical limitation of picosecond and nanosecond light pulses in these media showed that the appearance of the long-wavelength absorption band at the final stage of aggregation of colloidal metals resulted in nonlinear absorption of picosecond pulses. The nonlinear susceptibilities {chi}{sup (3)}(-3{omega},{omega},{omega},{omega}) of colloidal metals, fullerenes, and dye vapours are measured by the picosecond THG method, and the effect of self-action on THG in these media is analysed. (nonlinear optical phenomena)

• OSTI ID: 21470232
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 32, Issue 9; Other Information: DOI: 10.1070/QE2002v032n09ABEH002291; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
AGGLOMERATION
COLLOIDS
DOPED MATERIALS
DYES
FILMS
FULLERENES
HARMONIC GENERATION
LASER RADIATION
METALS
NEODYMIUM LASERS
NONLINEAR PROBLEMS
PULSES
SEMICONDUCTOR MATERIALS
SOLUTIONS
VAPORS
VISIBLE RADIATION
WAVELENGTHS
CARBON
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FREQUENCY MIXING
GASES
HOMOGENEOUS MIXTURES
LASERS
MATERIALS
MIXTURES
NONMETALS
RADIATIONS
SOLID STATE LASERS
SORPTION