Anomalous large nonlinearity of thin SnCl{sub 2} phthalocyanine films observed upon pulsed laser excitation

Journal Article · Thu Feb 28 00:00:00 EST 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N02ABEH002145· OSTI ID:21454768

Borshch, A A; Brodin, M S; Verbitskii, A B; Vertsimakha, Ya I; Volkov, V I; Lyakhovetskii, V R ^[1]

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1. Institute of Physics, National Academy of Sciences of Ukraine, Kiev (Ukraine)

The nonlinear susceptibility of thin stannum dichloride phthalocyanine (SnCl{sub 2}Pc) films was studied by the method of degenerate four-wave mixing (DFWM) using the second-harmonic 532-nm, 10-ns pulses from a single-mode, TEM{sub 00}, 1.5-mJ Nd{sup 3+}:YAG laser and by the method of nonlinear lens (the Z-scan method). The intensity of the first-order self-diffraction upon the DFWM on dynamic gratings induced in SnCl{sub 2}Pc films has a cubic dependence on the recording-beam intensity, indicating to the third-order nonlinear response of the films. The value of the nonlinear susceptibility {chi}{sup (3)}({omega};{omega},-{omega},{omega})=(4.4 {+-} 0.5) x 10{sup -7} esu noticeably exceeds this value for phthalocyanines known in the literature. The mechanisms that can be responsible for the nonlinear response of the new synthesised material are discussed. (nonlinear optical phenomena)

• OSTI ID: 21454768
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 32, Issue 2; Other Information: DOI: 10.1070/QE2002v032n02ABEH002145; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
DIFFRACTION
EXCITATION
FILMS
FREQUENCY MIXING
GRATINGS
LENSES
NEODYMIUM IONS
NEODYMIUM LASERS
NONLINEAR PROBLEMS
PHTHALOCYANINES
PULSES
TIN CHLORIDES
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
DYES
ENERGY-LEVEL TRANSITIONS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
LASERS
ORGANIC COMPOUNDS
SCATTERING
SOLID STATE LASERS
TIN COMPOUNDS
TIN HALIDES