Laser inscription of surface structures and induction of optical anisotropy in azo-benzene substituted photochromic polymers and other systems

被引：1

作者：

Miniewicz, Andrzej ^{[1
]}

Sznitko, Lech ^{[1
]}

Szlapa, Ewa N. ^{[1
]}

Karpinski, Pawel ^{[1
]}

Mitus, Antoni C. ^{[2
]}

Pawlik, Grzegorz ^{[2
]}

Schab-Balcerzak, Ewa ^{[3
,4
]}

机构：

[1] Wroclaw Univ Technol, Inst Phys & Theoret Chem, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[2] Wroclaw Univ Technol, Inst Phys, PL-50370 Wroclaw, Poland

[3] Polish Acad Sci, Ctr Polymer & Carbon Mat, PL-41819 Zabrze, Poland

[4] Univ Silesia, Inst Chem, PL-40006 Katowice, Poland

来源：

ORGANIC PHOTONIC MATERIALS AND DEVICES XVI | 2014年 / 8983卷

关键词：

azo-polymers; azobenzenes; surface relief gratings; SRG; light-induced birefringence; photochromic polymers; molecular photooreintation; light-induced mass transport; RELIEF GRATINGS; AZOBENZENE; FILMS; TRANSPORT; MOTIONS;

D O I：

10.1117/12.2039076

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present trial calculations of surface light-induced patterns in photochromic azo-substituted polymers. Using microscope with nanopositioning stage various birefringence and surface structures have been recorded in photochromic azo-functionalized polymers. By systematic approach to the inscription experiment and controlling cw or pulsed laser light intensity, its polarization and beam scan speed we observed the dynamics of molecular photoorientation and its relation to mass transport. We discuss properties of holographically inscribed polarization gratings and analyze them spatially by monitoring of microscopic local diffraction efficiency. We report how azo-benzene molecules can work in other systems, i.e. azobenzene functionalized POSS molecules embedded in nematic liquid crystal.

引用

页数：12