Third Harmonic Generation Susceptibility of Polyacetylene in Terms of the Chain Temperature

• Authors: M Sabra
• Languages of publication: EN

Abstracts

EN

The tight binding Hamiltonian of Su, Schrieffer, and Heeger has been used to describe the physical properties of the polyacetylene chain. The chain temperature is calculated from the potential energy which is directly related to the CH group displacement. Two different forms of the displacements have been considered: random and Gaussian. The third harmonic generation susceptibility spectra have been plotted in terms of the temperature using the four-wave mixing formula. The results show that a second peak at the mid gap energy has occurred for room temperature which is in good agreement with the experimental data.

Keywords

EN

73.61.Ph; 78.66.Qn; 42.65.An

Discipline

• 78.66.Qn: Polymers; organic compounds
• 73.61.Ph: Polymers; organic compounds
• 42.65.An: Optical susceptibility, hyperpolarizability[see also 33.15.Kr Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility]

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 6
• Pages: 761-774

Dates

published

2006-06

received

2006-02-19

(unknown)

2006-04-20

Contributors

author

M Sabra

• Physics Department, Atomic Energy Commission of Syria, P.O. Box 6091, Damascus, Syria

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Identifiers

DOI

10.12693/APhysPolA.109.761