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Proceedings Paper

Dynamics of nonlinear excitations in soft-quasi-one-dimensional molecular chains
Author(s): V. Yu. Makeev; Vladimir P. Poponin; V. A. Schzeglov
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Paper Abstract

The problem of vibrational energy transfer in ordered quasi-one-dimensional molecular structures is considered. The model of nonlinear lattice of classical nonlinear oscillators is investigated numerically in a broad range of parameter variations (anharmonisity of vibron and phonon subsystems, and nonlinear coupling between them). The conditions for the formation of soliton-like excitation of different types from initial local disturbances are determined. A numerical simulation showed that new types of supersonic anharmonic two-component solitons in an anharmonical lattice of harmonic oscillators can be excited. This type of nonlinear soliton-like excitation can be important in understanding the electron and energy transport mechanisms in molecular crystals, molecular aggregates, molecular oriented films and biopolimers.

Paper Details

Date Published: 1 May 1991
PDF: 6 pages
Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); doi: 10.1117/12.57336
Show Author Affiliations
V. Yu. Makeev, P. N. Lebedev Physical Institute (Russia)
Vladimir P. Poponin, P. N. Lebedev Physical Institute (Russia)
V. A. Schzeglov, P. N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 1403:
Laser Applications in Life Sciences
Sergei A. Akhmanov; Marina Yu. Poroshina, Editor(s)

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