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Proceedings Paper

Monte Carlo simulation of two-photon induced molecular orientation in solid polymer films
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Paper Abstract

We present the first Monte Carlo simulations of the mechanism of two-photon induced molecular orientation by photo-isomerization of chromophores in solid polymer films. Two-photon absorption (TPA) occurring at intense laser pulses creates molecular orientation of photo-isomers proportionally to the square of the excitation intensity and the fourth power of the cosine of the angle θ between the TPA-transition dipole moment and the direction of the polarization of the excitation light. Photo-selection in cos4θ will result in the orientational redistribution of the chromophores differently from the well-known one-photon absorption process. Kinetic Monte Carlo model is proposed and illustrative "microscopic" results related to diffraction gratings inscription are presented.

Paper Details

Date Published: 14 September 2006
PDF: 7 pages
Proc. SPIE 6330, Nonlinear Optical Transmission and Multiphoton Processes in Organics IV, 633003 (14 September 2006); doi: 10.1117/12.683863
Show Author Affiliations
Grzegorz Pawlik, Wroclaw Univ. of Technology (Poland)
Antoni C. Mitus, Wroclaw Univ. of Technology (Poland)
Francois Kajzar, Lab. POMA, CNRS, Univ. d'Angers (France)

Published in SPIE Proceedings Vol. 6330:
Nonlinear Optical Transmission and Multiphoton Processes in Organics IV
A. Todd Yeates; Kevin D. Belfield; Francois Kajzar, Editor(s)

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