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Proceedings Paper

Thin film Z-scan measurements of the nonlinear response of novel conjugated silicon-ethynylene polymers and metal-containing complexes incorporated into polymeric matrices
Author(s): William E. Douglas; Larisa G. Klapshina; Anatoly Nikolaevich Rubinov; George A. Domrachev; Boris A. Bushuk; Oleg Leonidovich Antipov; Vladimir V. Semenov; Alexander Sergeevich Kuzhelev; Sergey B. Bushuk; Julia A. Kalvinkovskaya
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Paper Abstract

The third-order optical nonlinearities of new conjugated poly[(arylene)(ethynylene)silylene]s, and a variety of chromium, neodymium or cobalt complexes incorporated into polymeric matrices as thin sol-gel or polyacrylonitrile films have been determined by using a single beam Z-scan technique. The samples were pumped by a single ultrashort pulse of a mode-locked Nd-phosphate glass laser (wavelength 1054 nm) with a 5ps pulse duration (full width at half- maximum), the repetition rate of the Gaussian beam being low (0.3Hz) ro avoid thermal effects. The spot radius of the focused pulse was ca. 60micrometers , its beam waist being in the sample (intensity up to 4x1013 Wm-2). Calibration was done with chloroform and benzene, the value of N2 for the latter (2x10-12esu) being similar to that previously reported. A small-aperture Z-scan (S=0.03) was used to measure the magnitude and the sign of the nonlinear refractive index, n2. Very high nonlinear refractive indices were found for a film containing (a) a poly[(arylene)(ethynylene)silylene]s with pentacoordinated silicon (c 5 gl-1) in a sol-gel matrix (N2 = 6 x 10-13 cm2W-1), (b) a film containing a poly[(arylene)(ethynylene)silylene] with tetracoordinated silicon (c 0.5 gl-1) and a very small proportion of fullerene-C70 incorporated into an NH2-containing sol-gel matrix (n2 = 5x10-13 cm2W-1, and (c) a thin polyacrylonitrile film of polycyanoethylate bis-arenechromium(I) hydroxide (n2 = -5 x 10-12 cm(superscript 2W-1.

Paper Details

Date Published: 29 November 2000
PDF: 9 pages
Proc. SPIE 4106, Linear, Nonlinear, and Power-Limiting Organics, (29 November 2000); doi: 10.1117/12.408525
Show Author Affiliations
William E. Douglas, Univ. Montpellier II (France)
Larisa G. Klapshina, G.A. Razuvaev Institute of Organometallic Chemistry (Russia)
Anatoly Nikolaevich Rubinov, B.I. Stepanov Institute of Physics (Belarus)
George A. Domrachev, G.A. Razuvaev Institute of Organometallic Chemistry (Russia)
Boris A. Bushuk, B.I. Stepanov Institute of Physics (Belarus)
Oleg Leonidovich Antipov, Institute of Applied Physics (Russia)
Vladimir V. Semenov, G.A. Razuvaev Institute of Organometallic Chemistry (Russia)
Alexander Sergeevich Kuzhelev, Institute of Applied Physics (Russia)
Sergey B. Bushuk, B.I. Stepanov Institute of Physics (Belarus)
Julia A. Kalvinkovskaya, B.I. Stepanov Institute of Physics (Belarus)

Published in SPIE Proceedings Vol. 4106:
Linear, Nonlinear, and Power-Limiting Organics
Manfred Eich; Christopher M. Lawson; Mark G. Kuzyk; Manfred Eich; Mark G. Kuzyk; Christopher M. Lawson; Robert A. Norwood, Editor(s)

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