Change in spatial orientation of components of molecular layer under the action of laser radiation

E. N. Kaliteevskaya; V. P. Krutyakova; T. K. Razumova

doi:10.1117/12.580017

15 July 2004 Change in spatial orientation of components of molecular layer under the action of laser radiation

E. N. Kaliteevskaya, V. P. Krutyakova, T. K. Razumova

Proceedings Volume 5506, Nonresonant Laser-Matter Interaction (NLMI-11); (2004) https://doi.org/10.1117/12.580017
Event: Nonresonant Laser-Matter Interaction (NLMI-11), 2003, St. Petersburg, Russian Federation

Abstract

The spectral characteristics and the orientation of absorbing centers in the polymethine dye molecular layers on solid dielectric substrates were studied. Depending on thickness, the layers have from 1 to 4 molecular components, differing in the absorption spectra and title angles. The components of submonolayers always possess one type of angular distribution (the first type). In multilayers two types of the angular distribution of components was observed. The action of laser light does not affect the component orientation in layers characterized by the first type of angular distribution. In layers with the second type of angular distribution the reorientation of components was observed under the action of radiation. The relative yield of this process increases with increasing single-pulse energy density. It was suggested that the photostimulated reorientation of components results from an increase in the vibration energy, which is stored by absorbing component of the layer and transferred to its other components not absorbing the radiation.

Citation Download Citation

E. N. Kaliteevskaya, V. P. Krutyakova, and T. K. Razumova "Change in spatial orientation of components of molecular layer under the action of laser radiation", Proc. SPIE 5506, Nonresonant Laser-Matter Interaction (NLMI-11), (15 July 2004); https://doi.org/10.1117/12.580017

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