New Optical Recording Material for Data Storage

1983 ◽  
Author(s):  
Yoshio Aoki ◽  
Kenjirou Watanabe ◽  
Tomoya Oyama ◽  
Noboru Satou ◽  
Senri Miyaoka
Keyword(s):  
Data Storage ◽  
Optical Recording ◽  
Recording Material

scholarly journals Zero Spatial Frequency Limit: Method to Characterize Photopolymers as Optical Recording Material

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Sergi Gallego ◽  
Andrés Márquez ◽  
Manuel Ortuño ◽  
Cristian Neipp ◽  
Inmaculada Pascual ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Data Storage ◽  
Direct Method ◽  
Optical Recording ◽  
Optical Processing ◽  
Optical Elements ◽  
Recording Material ◽  
The University ◽  
A Direct Method ◽  
Processing Group

Photopolymers are useful for different holographic applications such as holographic data storage or diffractive optical elements. However, due to the presence of two different phenomena, polymer formation and monomer diffusion, it is difficult to characterize each parameter independently. We propose a direct method based on zero spatial frequency recording, to eliminate the diffusion influence, and on interferometric techniques, both in transmission and in reflection, to obtain quantitative values of shrinkage, polymerization rate, polymer refractive index and relation between intensity and polymerization, and so forth, This method has been implemented in the Holography and Optical Processing Group from the University of Alicante to characterize different photopolymers. In this paper, we present a compilation of the results obtained with this method for different photopolymers and we compare their characteristics.

New chalcogenide alloy as phase-change optical recording material

2001 ◽  
Author(s):  
Yagya D. Sharma ◽  
Laxman Singh ◽  
Promod K. Bhatnagar
Keyword(s):  
Phase Change ◽  
Optical Recording ◽  
Recording Material

scholarly journals A Review of Polarization-Sensitive Materials for Polarization Holography

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5562
Author(s):  
Yueyang Zhai ◽  
Li Cao ◽  
Ying Liu ◽  
Xiaodi Tan
Keyword(s):  
Data Storage ◽  
High Performance ◽  
High Capacity ◽  
Polarization Holography ◽  
Optical Elements ◽  
Recording Material ◽  
Potential Applications ◽  
Capacity Data ◽  
Polarization Of Light

Polarization holography has the unique capacity to record and retrieve the amplitude, phase, and polarization of light simultaneously in a polarization-sensitive recording material and has attracted widespread attention. Polarization holography is a noteworthy technology with potential applications in the fields of high-capacity data storage, polarization-controlled optical elements, and other related fields. The choice of its high-performance materials is particularly important. To further develop polarization holography applications and improve the quality of the information recorded (i.e., material sensitivity and resolution), a deeper understanding of such materials is needed. We present an overview of the polarization-sensitive materials, which introduced polarization holographic technology and the development of polarization holographic materials. The three main types of polarization holographic materials are described, including azopolymer materials, photopolymer material, and photorefractive polymer material. We examine the key contributions of each work and present many of the suggestions that have been made to improve the different polarization-sensitive photopolymer materials.

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.

Characterization of Amorphous Phases of Ge2Sb2Te5Phase-Change Optical Recording Material on Their Crystallization Behavior

1999 ◽  
Vol 38 (Part 1, No. 8) ◽  
pp. 4775-4779 ◽  
Author(s):  
Jeongwoo Park ◽  
Myong R. Kim ◽  
Woo S. Choi ◽  
Hun Seo ◽  
Cheong Yeon
Keyword(s):  
Crystallization Behavior ◽  
Optical Recording ◽  
Amorphous Phases ◽  
Recording Material

scholarly journals Phase-change Optical Recording Material.

Materia Japan ◽  
1994 ◽  
Vol 33 (9) ◽  
pp. 1159-1167 ◽  
Author(s):  
Motoyasu Terao
Keyword(s):  
Phase Change ◽  
Optical Recording ◽  
Recording Material

A Novel Approach to Obtain GeSbTe-Based High Speed Crystallizing Materials for Phase Change Optical Recording

2001 ◽  
Vol 674 ◽  
Author(s):  
Tae-Yon Lee ◽  
Byung-ki Cheong ◽  
Taek Sung Lee ◽  
Sung Jin Park ◽  
Won Mok Kim ◽  
...  
Keyword(s):  
Phase Change ◽  
Data Storage ◽  
High Speed ◽  
Preliminary Test ◽  
Optical Data Storage ◽  
Optical Recording ◽  
Optical Data ◽  
Recording Layer ◽  
Novel Approach ◽  
Vegard’S Law

ABSTRACTA new approach is proposed to obtain fast crystallizing materials based on a conventional GeSbTe alloy for rewritable phase change optical data storage. By means of co-sputtering, Ge1Sb2Te4alloy was mixed with Sn1Bi2Te4alloy so as to form pseudo-binary alloys (Ge1Sb2Te4)1-x(Sn1Bi2Te4)x (x is a mole fraction). From structural and optical analyses of the co- sputtered and annealed alloy films, the formation of stable crystalline single phases was observed along with a Vegard's law behavior, suggesting a homogeneous mixing of the two alloys. By use of a 4 layered disk with (Ge1Sb2Te4)0.85(Sn1Bi2Te4)0.15 recording layer, a preliminary test of writing and erasing was carried out and the results were compared with the case of the disk with Ge1Sb2Te4recording layer. The (Ge1Sb2Te4)0.85(Sn1Bi2Te4)0.15 recording layer was found to yield markedly higher erasibility, especially with increasing disk linear velocity.

scholarly journals Повышение эффективности полимерного нанокомпозита для формирования фотонных структур методом оптической записи

2020 ◽  
Vol 128 (10) ◽  
pp. 1512
Author(s):  
Ю.Э. Бурункова ◽  
Д. Альхалил ◽  
Д.С. Свяжина
Keyword(s):  
Silicon Oxide ◽  
Optical Recording ◽  
Refractive Indices ◽  
Photosensitive Polymer ◽  
Recording Material ◽  
Silicon Oxide Nanoparticles ◽  
Multibeam Interference ◽  
2D And 3D ◽  
The Given

In this work, the conditions for optimizing an optical recording material based on photosensitive acrylate-urethane nanocomposites with silicon oxide nanoparticles, for efficient Bragg gratings recording by multibeam interference method is presented. It was shown that the choice of the most effective monomers and their concentrations in the nanocomposite which depends on their structure and polymerization rate, followed by determination of the optimal recording radiation intensity for the given composition, makes it possible to adjust the conditions for component diffusion and redistribution, and hence, the formation of regions with different refractive indices in the recording medium. These results can be useful for creating complex 2D and 3D photonic structures based on the targeted modification of photosensitive polymer nanocomposites with different properties (luminescent, nonlinear optical, etc.).

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