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.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 9 Vol. 32; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

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