Share Email Print

Proceedings Paper

Optical tweezing by photochemistry (Conference Presentation)
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Optical tweezing;by photochemistry is a novel concept in the field of optical manipulation. I discuss it in azo-polymer films through theory and experiments. I will show that optical tweezing can be obseved by a photochemical force, e.g. photoisomerization force which leads to a spring type motion. This force is derived from a harmonic light potential that moves the azo-polymer, and it is parenting to optical tweezers since it occurs in the presence of a gradient of light intensity, but it is quite different in the sense that it requires photoisomerization to occur. The azo-polymer’s motion is governed by four competing forces: the photoisomerization force, and the restoring optical gradient and elastic forces, as well as the random forces due to spontaneous diffusion.

Paper Details

Date Published: 10 November 2016
PDF: 1 pages
Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 99221M (10 November 2016); doi: 10.1117/12.2236628
Show Author Affiliations
Zouheir Sekkat, MAScIR (Morocco)
Mohammed V Univ. of Rabat (Morocco)
Osaka Univ. (Japan)
Satoshi Kawata, Osaka Univ. (Japan)
Yasushi Inouye, Osaka Univ. (Japan)
Hidekazu Ishitobi, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 9922:
Optical Trapping and Optical Micromanipulation XIII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

© SPIE. Terms of Use
Back to Top