Surface relief grating formation in liquid-crystalline side-chain azopolymers by femtosecond pulse holography

2005 ◽  
Vol 97 (9) ◽  
pp. 093101 ◽  
Author(s):  
Geon Joon Lee ◽  
Cha Hwan Oh ◽  
YoungPak Lee ◽  
In Ae Kang ◽  
Yang Kyoo Han
Keyword(s):  
Surface Relief ◽  
Femtosecond Pulse ◽  
Liquid Crystalline ◽  
Side Chain ◽  
Surface Relief Grating ◽  
Grating Formation

Cyclic Side-Chain Phenylazo Naphthalene Polymers: Enhanced Fluorescence Emission and Surface Relief Grating Formation

2012 ◽  
Vol 33 (21) ◽  
pp. 1845-1851 ◽  
Author(s):  
Hao Zhang ◽  
Nianchen Zhou ◽  
Xing Zhu ◽  
Xinrong Chen ◽  
Zhengbiao Zhang ◽  
...  
Keyword(s):  
Surface Relief ◽  
Fluorescence Emission ◽  
Side Chain ◽  
Enhanced Fluorescence ◽  
Surface Relief Grating ◽  
Grating Formation

Incoherent UV/VIS Lasers Assisted Surface Relief Grating Formation

2012 ◽  
Vol 560-561 ◽  
pp. 456-461 ◽  
Author(s):  
Xiao Wu ◽  
Thi Thanh Ngan Nguyen ◽  
De Yan Sun ◽  
Isabelle Ledoux-Rak ◽  
Chi Thanh Nguyen ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Surface Relief ◽  
Optical Methods ◽  
Side Chain ◽  
Trans Form ◽  
Surface Relief Grating ◽  
Photoisomerization Process ◽  
Grating Formation

Two efficient optical methods are demonstrated to improve the formation of surface relief grating (SRG). The SRG formation is realized by a two-beam interference technique (λ=532nm) in an azobenzene side-chain copolymer. An incoherent UV beam (λ=355nm) or an incoherent VIS beam (λ=532nm), called assisting beam, was used to accelerate the photoisomerization process of the cis-form↔trans-form cycle, resulting in an efficient formation of SRG. The dependence of the diffraction efficiency and the relief depth of the SRGs on the polarizations of both assisting beams were investigated showing two different assisting mechanisms.

Effect of Polarization of Ar+ Laser Beams on Surface-Relief-Grating Formation Behavior of Molecular Azo Glass

2009 ◽  
Vol 29 (3) ◽  
pp. 767-771
Author(s):  
郭妙才 Guo Miaocai ◽  
徐则达 Xu Zeda ◽  
王晓工 Wang Xiaogong
Keyword(s):  
Surface Relief ◽  
Laser Beams ◽  
Surface Relief Grating ◽  
Formation Behavior ◽  
Grating Formation

Gradient force: The mechanism for surface relief grating formation in azobenzene functionalized polymers

1998 ◽  
Vol 72 (17) ◽  
pp. 2096-2098 ◽  
Author(s):  
Jayant Kumar ◽  
Lian Li ◽  
Xin Li Jiang ◽  
Dong-Yu Kim ◽  
Taek Seung Lee ◽  
...  
Keyword(s):  
Surface Relief ◽  
Functionalized Polymers ◽  
Gradient Force ◽  
Surface Relief Grating ◽  
Grating Formation
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