Anisotropy of the picosecond photoconductive response of highly oriented trans-polyacetylene

A. D. Walser

doi:10.1117/12.2322316

1 February 1992 Anisotropy of the picosecond photoconductive response of highly oriented trans-polyacetylene

A. D. Walser

Proceedings Volume 1599, Recent Advances in the Uses of Light in Physics, Chemistry, Engineering, and Medicine; (1992) https://doi.org/10.1117/12.2322316
Event: Recent Advances in the Uses of Light in Physics, Chemistry, Engineering, and Medicine, 1991, New York, NY, United States

Abstract

The anisotropy of the picosecond photoconductive response of trans-polyacetylene was measured for both above- (0.53?m) and below-gap (1.06?m) excitation. The anisotropy for below-gap excitation remain constant at a value of 2.4, independent of the laser intensity, while the anisoiropy for above-gap excitation decreased from a value of 7.4 to 4.5 as the intensity increased. In addition, the picosecond photocurrent was greatest for below-gap excitation. These results demonstrate the photoproduction of nonlinear charge carriers (solitons and polarons ) atenergies below the principle interband absorption edge.

Citation Download Citation

A. D. Walser "Anisotropy of the picosecond photoconductive response of highly oriented trans-polyacetylene", Proc. SPIE 1599, Recent Advances in the Uses of Light in Physics, Chemistry, Engineering, and Medicine, (1 February 1992); https://doi.org/10.1117/12.2322316

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