Longitudinal anisotropy of the photoinduced molecular migration in azobenzene polymer films

被引：44
作者：
Gilbert, Y
Bachelot, R
Royer, P
Bouhelier, A
Wiederrecht, GP
Novotny, L
机构：
[1] CNRS, FRE 2971, Lab Nanotechnol & Instrumentat Opt, Troyes, France
[2] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA
[3] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA
[4] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
[5] Univ Bourgogne, Phys Lab, F-21078 Dijon, France
来源：
OPTICS LETTERS | 2006年 / 31卷 / 05期
关键词：
D O I：
10.1364/OL.31.000613
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effects of tightly focused, higher-order laser beams on the photoinduced molecular migration and surface deformations in azobenzene polymer films are investigated. We demonstrate that the surface relief is principally triggered by longitudinal fields, i.e., electric fields polarized along the optical axis of the focused beam. Our findings can be explained by the translational diffusion of isomerized chromophores when the constraining effect of the polymer-air interface is considered. (c) 2006 Optical Society of America.
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收藏
页码：613 / 615
页数：3
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