Theoretical analysis on spatially structured beam induced mass transport in azo-polymer films

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DOI	Resolve DOI: https://doi.org/10.1364/OE.395054
Author	Search for: Ferrer-Garcia, Manuel F.ORCID identifier: https://orcid.org/0000-0003-1358-2049; Search for: Alvandi, Yousef; Search for: Zhang, Yingwen¹; Search for: Karimi, Ebrahim¹ORCID identifier: https://orcid.org/0000-0002-8168-7304
Affiliation	National Research Council Canada. Security and Disruptive Technologies
Format	Text, Article
Subject	beam structure; cylindrical vector beams; light beams; polarized light; stimulated emission depletion microscopy; vector beams
Abstract	The radiation force from paraxial beams possessing helical phase fronts causes twists on the surface of an azobenzene polymer sample, and leads to the formation of micro-scale structures. Here, we theoretically investigate the radiation force generated by spatially structured optical beams on a dispersive-absorptive substrate. We derive an analytical expression for the radiation force from spatially structured polarized beams, including, lemon, star, monstar and vector vortex beams in the paraxial regime. Finally, we extend our calculation for non-paraxial beams - optical beams under the tight-focusing regime - and simulate the transverse radiation forces numerically at the focal plane.
Publication date	2020-07-06
Publisher	Optical Society of America
Licence	Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
In	Optics Express 28, no. 14, 395054: 19954–19965.
Language	English
Peer reviewed	Yes
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Record identifier	6ad08191-c968-43b4-8222-8d636e0b6046
Record created	2021-06-01
Record modified	2021-06-11

Date modified:: 2026-02-10