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Proceedings Paper

Highly sensitive cw and transient polarization spectroscopy of photoexcited states in nanopolyacetylene
Author(s): N. V. Chigarev; V. A. Ruilova-Zavgorodnii; Dmitri Yu. Paraschuk; Valerii M. Kobryanskii
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Paper Abstract

A highly sensitive photoinduced polarimetry method was applied to probe optical anisotropy of the photoexcited states in non-oriented films of nano-polyacetylene. The photoinduced absorption anisotropy was observed in both cw and transient polarization experiments. The photoinduced dichroism parameter of the nano-polyacetylene films, (mu) equals (forula available in paper) was measured on the sub-nanosecond time scale ((mu) approximately equals 1) and on the millisecond time scale ((mu) approximately equals (formula available in paper) are the absorption indexes of the linear polarized probe polarized along and across the linear polarized pump, correspondingly. We discuss delocalization of (pi) electrons in the photoexcited states of trans-nano-polyacetylene chains.

Paper Details

Date Published: 30 May 2001
PDF: 4 pages
Proc. SPIE 4429, International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-Precision Measurements in Optics, (30 May 2001); doi: 10.1117/12.428342
Show Author Affiliations
N. V. Chigarev, M.V. Lomonosov Moscow State Univ. (Russia)
V. A. Ruilova-Zavgorodnii, M.V. Lomonosov Moscow State Univ. (Russia)
Dmitri Yu. Paraschuk, M.V. Lomonosov Moscow State Univ. (Russia)
Valerii M. Kobryanskii, Institute of Chemical Physics (United States)


Published in SPIE Proceedings Vol. 4429:
International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-Precision Measurements in Optics
Sergei N. Bagaev; Victor N. Zadkov; Sergei M. Arakelian, Editor(s)

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