Diffraction efficiency improvement of surface relief grating by corona poling

2002 ◽  
Author(s):  
K. Munakata ◽  
K. Harada ◽  
H. Anji ◽  
M. Ituh ◽  
T. Yatagai ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Surface Relief ◽  
Efficiency Improvement ◽  
Surface Relief Grating ◽  
Corona Poling

Diffraction efficiency improvement of surface relief grating by corona poling

2000 ◽  
Author(s):  
Katsuhiro Munakata ◽  
Kenji Harada ◽  
Hitoshi Anji ◽  
Masahide Itoh ◽  
Toyohiko Yatagai ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Surface Relief ◽  
Efficiency Improvement ◽  
Surface Relief Grating ◽  
Corona Poling

scholarly journals Tunable Polarization and Surface Relief Holographic Gratings in Azopolymer Nanocomposites with Incorporated Goethite (α-FeOOH) Nanorods

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 306
Author(s):  
Lian Nedelchev ◽  
Georgi Mateev ◽  
Velichka Strijkova ◽  
Verónica Salgueiriño ◽  
David S. Schmool ◽  
...  
Keyword(s):  
Thin Films ◽  
Sample Preparation ◽  
Diffraction Efficiency ◽  
Sodium Salt ◽  
Surface Relief ◽  
Holographic Gratings ◽  
Surface Relief Grating ◽  
Nanocomposite Thin Films ◽  
Surface Relief Gratings

We employ two approaches to tune the properties of concurrently inscribed volume polarization and surface relief gratings in nanocomposite thin films containing the azopolymer PAZO (poly[1-4-(3-carboxy-4-hydrophenylazo)benzensulfonamido]-1,2-ethanediyl, sodium salt]) and goethite (α-FeOOH) nanorods. The first one is applied on the stage of sample preparation by varying the concentration of the goethite nanorods from 0% to 15%. Then, different angles between the recording beams are set in the holographic scheme, which allow us to obtain gratings with spatial periods in the range from 0.86 to 2.51 µm. Surface relief modulation close to 300 nm is achieved as well as total diffraction efficiency in the ±1 diffracted orders of more than 50%. The influence of the incorporated goethite nanorods on the properties of both volume birefringence and the surface relief grating are discussed.

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.

Photoinduced Surface Relief Grating on Amorphous Poly(4-phenylazophenol) Films

2000 ◽  
Vol 12 (6) ◽  
pp. 1585-1590 ◽  
Author(s):  
Shaoping Bian ◽  
Wei Liu ◽  
John Williams ◽  
Lynne Samuelson ◽  
Jayant Kumar ◽  
...  
Keyword(s):  
Surface Relief ◽  
Surface Relief Grating

Surface Relief Grating Induced Colloidal Crystal Structures†

Langmuir ◽  
2002 ◽  
Vol 18 (6) ◽  
pp. 2019-2023 ◽  
Author(s):  
Dong Kee Yi ◽  
Mi Jeong Kim ◽  
Dong-Yu Kim
Keyword(s):  
Crystal Structures ◽  
Surface Relief ◽  
Colloidal Crystal ◽  
Surface Relief Grating

Characteristics of a Surface Relief Grating on an Azo Polymer Film with a Gold Nano-Particle Layer

2009 ◽  
Vol 54 (1) ◽  
pp. 49-52
Author(s):  
S. Lee ◽  
J. S. Kim ◽  
C. H. Oh ◽  
Gangri Cai ◽  
S. H. Han
Keyword(s):  
Polymer Film ◽  
Surface Relief ◽  
Nano Particle ◽  
Surface Relief Grating ◽  
Azo Polymer ◽  
Particle Layer

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

Azo-polysiloxanes spontaneous surface relief grating by pulsed laser irradiation

2020 ◽  
Vol 126 (8) ◽  
Author(s):  
G. Bulai ◽  
L. Epure ◽  
M. Strat ◽  
S. Toma ◽  
N. Cimpoesu ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Surface Relief ◽  
Pulsed Laser ◽  
Surface Relief Grating ◽  
Pulsed Laser Irradiation
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