Influence of optical forces induced by paraxial vortex Gaussian beams on the formation of a microrelief on carbazole-containing azopolymer films

The paper discusses photoinduced microrelief formation in a film of an azopolymer. A theoretical study of the effect of laser beam polarization on the balance of optical forces acting under the direct action of paraxial Gaussian beams on the irradiated substance was made. We show that taking into ac...

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Bibliographic Details
Published in:Applied optics (2004) 2020-10, Vol.59 (29), p.9185
Main Authors: Khonina, Svetlana N., Ustinov, Andrey V., Volotovskiy, Sergey G., Ivliev, Nikolay A., Podlipnov, Vladimir V.
Format: Article
Language:English
Subjects:
Approximation
Azo polymers
Carbazoles
Gaussian beams (optics)
Laser beams
Mathematical analysis
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Summary:The paper discusses photoinduced microrelief formation in a film of an azopolymer. A theoretical study of the effect of laser beam polarization on the balance of optical forces acting under the direct action of paraxial Gaussian beams on the irradiated substance was made. We show that taking into account the gradient and scattering components of the force does not allow us to correctly describe the shape of the microasperities obtained on a carbazole-containing azopolymer. An approximation function is presented that describes the dependence of the microasperities’ shapes on the non-gradient component of the optical force of laser radiation in the absence and presence of a vortex phase. A comparative analysis of the approximation results and experimentally obtained microreliefs was carried out.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.398620