Real-time holographic recording material: NGD

1991 ◽  
Author(s):  
Lurong Guo ◽  
Kuoping Wang ◽  
Qirei Cheng
Keyword(s):  
Real Time ◽  
Holographic Recording ◽  
Recording Material

Primary photoprocesses of chromium(VI) in real-time holographic recording material: dichromated poly(vinyl alcohol)

1993 ◽  
Vol 97 (28) ◽  
pp. 7228-7233 ◽  
Author(s):  
Gurusamy Manivannan ◽  
Rupak Changkakoti ◽  
Roger A. Lessard ◽  
Gilles Mailhot ◽  
Michele Bolte
Keyword(s):  
Real Time ◽  
Vinyl Alcohol ◽  
Holographic Recording ◽  
Poly Vinyl Alcohol ◽  
Chromium Vi ◽  
Recording Material

Primary photoprocesses in real-time holographic recording material: dichromated poly(vinyl alcohol)

1993 ◽  
Author(s):  
Gurusamy Manivannan ◽  
Rupak Changkakoti ◽  
Roger A. Lessard ◽  
Gilles Mailhot ◽  
Michel Bolte
Keyword(s):  
Real Time ◽  
Vinyl Alcohol ◽  
Holographic Recording ◽  
Poly Vinyl Alcohol ◽  
Recording Material

scholarly journals A New Three-Component Photo-Initiating System for Visible Light Recording of Volume Holograms with Single-Pulsed Laser

Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3517
Author(s):  
Horst Berneth ◽  
Friedrich Karl Bruder ◽  
Thomas Fäcke ◽  
Sven Hansen ◽  
Koichi Kawamura ◽  
...  
Keyword(s):  
Alkyl Radical ◽  
Pulsed Laser ◽  
Holographic Recording ◽  
Radical Species ◽  
Holographic Gratings ◽  
Initiation System ◽  
Volume Holograms ◽  
Recording Material ◽  
Safranine O ◽  
Dye Molecule

Versatile substituted electron-deficient trichloromethylarenes can easily be synthesized and combined with a Safranine O/triarylalkylborate salt to form a highly efficient three-component photo-initiation system that starts free radical polymerization to finally form holographic gratings with a single-pulsed laser. The mechanism of this photo-initiation most likely relies on an electron transfer from the borate salt into the semi-occupied HOMO of the excited dye molecule Safranine O, which after fragmentation generates an initiating alkyl radical and longer-lived dye radical species. This dye radical is most probably oxidized by the newly introduced trichloromethylarene derivative as an electron acceptor. The two generated radicals from one absorbed photon initiate the photopolymerization and form index gratings in a suitable holographic recording material. This process is purely photonic and does not require further non-photonic post treatments.

scholarly journals DOPED POLY(METHYL METHACRYLATE) PHOTOPOLYMERS FOR HOLOGRAPHIC DATA STORAGE

2006 ◽  
Vol 15 (02) ◽  
pp. 239-252 ◽  
Author(s):  
SHIUAN HUEI LIN ◽  
JUNE-HUA LIN ◽  
PO-LIN CHEN ◽  
YI-NAN SHIAO ◽  
KEN Y. HSU
Keyword(s):  
Methyl Methacrylate ◽  
Data Storage ◽  
Physical Mechanism ◽  
Dynamic Range ◽  
Optical Quality ◽  
Holographic Recording ◽  
Holographic Data Storage ◽  
Poly Methyl Methacrylate ◽  
Recording Material ◽  
Good Optical Quality

In this paper, we report our investigations on thick holographic recording material of the phenanthrenequinone doped poly(methyl methacrylate) (PQ:PMMA) photopolymer. The design strategy and fabrication technique for making thick polymer samples with negligible shrinkage and good optical quality are presented. The physical mechanism for holographic recording in PQ:PMMA material is described, and methods for improving are proposed. Based on these methods, photopolymer samples with different compositions are fabricated and experimentally characterized. The results show that by modifying compositions, the material sensitivity and dynamic range for volume holographic recording have been improved.

Cr(VI) and Fe(III) doped polymer systems as real-time holographic recording materials

1992 ◽  
Author(s):  
Gurusamy Manivannan ◽  
Rupak Changkakoti ◽  
Roger A. Lessard
Keyword(s):  
Real Time ◽  
Holographic Recording ◽  
Polymer Systems ◽  
Doped Polymer

New photopolymer used as a holographic recording material

1993 ◽  
Vol 32 (20) ◽  
pp. 3706 ◽  
Author(s):  
A. Fimia ◽  
N. López ◽  
F. Mateos ◽  
R. Sastre ◽  
J. Pineda ◽  
...  
Keyword(s):  
Holographic Recording ◽  
Recording Material

Holographic Recording Material Containing Poly-N-vinylcarbazole

1986 ◽  
Author(s):  
Yasuo Yamagishi ◽  
Takeshi Ishizuka ◽  
Teruo Yagishita ◽  
Kasumi Ikegami ◽  
Hirofumi Okuyama
Keyword(s):  
Holographic Recording ◽  
Recording Material

scholarly journals Spatial Frequency Response of Epoxy-Based Volume Holographic Recording Material

Molecules ◽  
2019 ◽  
Vol 24 (6) ◽  
pp. 1018
Author(s):  
Tina Sabel
Keyword(s):  
Spatial Frequency ◽  
Frequency Response ◽  
High Spatial Frequency ◽  
Holographic Recording ◽  
Holographic Gratings ◽  
Mass Migration ◽  
Spatial Frequencies ◽  
Recording Material ◽  
Wide Range ◽  
Transmission And Reflection

Holographic volume phase gratings are recorded in an epoxy-based, free-surface, volume holographic recording material. Light-induced gratings are formed by photo-triggered mass migration caused by component diffusion. The material resolution enables a wide range of pattern spacings, to record both transmission and reflection holograms with many different spatial frequencies. An optimum spatial frequency response is found between the low spatial frequency roll-off and the high spatial frequency cut-off. The influence of the energy density of exposure on the spatial frequency response is investigated. Secondary volume holographic gratings (parasitic gratings) are observed in the high frequency range. The possibility of distinguishing the regular grating from the secondary grating is discussed in the form of probe wavelength detuning.

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