Realizing Nondestructive Luminescence Readout in Photochromic Ceramics via Deep Ultraviolet Excitation for Optical Information Storage

2021 ◽  
Author(s):  
Zetian Yang ◽  
Jieqi Hu ◽  
Lisa I D J Martin ◽  
David Van der Heggen ◽  
Dirk Poelman
Keyword(s):  
High Density ◽  
Information Storage ◽  
Optical Information ◽  
Ultraviolet Excitation ◽  
Storage Media ◽  
Deep Ultraviolet ◽  
Optical Information Storage ◽  
Photochromic Materials

Photochromic materials exhibiting luminescence modulation behavior are regarded as promising for high-density optical information storage media. During the luminescence readout process however, many of these materials are subject to coloration...

Two-Photon Three-Dimensional Optical Storage of a New Photobleaching Material

2012 ◽  
Vol 532-533 ◽  
pp. 8-11
Author(s):  
Jian Wen Cai
Keyword(s):  
Data Storage ◽  
Three Dimensional ◽  
Optical Storage ◽  
Optical Data Storage ◽  
High Density ◽  
Information Storage ◽  
Optical Data ◽  
Optical Information ◽  
Two Photon ◽  
Optical Information Storage

Two-photon three-dimensional optical data storage is an important method to realize high density storage and ultra-high density storage. This paper introduces the the basic principle of two-photon photobleaching optical storage, describes two-photon three-dimensional optical storage system and the absorption and fluorescence spectra of a new type of photobleaching materials BASF in detail, carries out the experimental study that two-photon information is written and read out against a new photobleaching material of BASF using femtosecond pulse laser wavelength is 800nm, and realize two layers of optical information storage, the information point spacing is 8μm and the interlayer distance is 15μm; two-layer information point signal strength is recognized using Recognition algorithm. The experiment proved that new photobleaching material of BASF can be used for two-photon three-dimensional optical storage, that has laid a solid foundation for the high-density and ultra-high density optical information storage materials research.

Reversible multiplexing optical information storage and photoluminescence switching in Eu2+ doped fluorophosphate-based tunable photochromic materials

2021 ◽  
Author(s):  
Yang Lv ◽  
Shaoan Zhang ◽  
Zhenzhang Li ◽  
Yahong Jin ◽  
Haoyi Wu ◽  
...  
Keyword(s):  
Optical Storage ◽  
Information Storage ◽  
Optical Information ◽  
Research Focus ◽  
Potential Applications ◽  
Optical Information Storage ◽  
Photochromic Materials ◽  
Photochromic Reaction

Luminescent switching materials upon photochromic reaction have received arising research focus due to their potential applications in erasable optical storage. Nevertheless, it's still remains a challenging to build photochromic materials...

NaMgF 3 :Tb 3+ @NaMgF 3 Nanoparticles Containing Deep Traps for Optical Information Storage

2021 ◽  
pp. 2100624
Author(s):  
Yikuang Wang ◽  
Dunrong Chen ◽  
Yixi Zhuang ◽  
Wenjing Chen ◽  
Hangyu Long ◽  
...  
Keyword(s):  
Information Storage ◽  
Optical Information ◽  
Deep Traps ◽  
Optical Information Storage

Ferrimagnetic Cobalt Ferrite Films Prepared by the Sol-Gel Process

1993 ◽  
Vol 313 ◽  
Author(s):  
Eva M. Wong ◽  
Haixing Zheng ◽  
John D. Mackenzie ◽  
T. Tsuchiya
Keyword(s):  
Remanent Magnetization ◽  
Cobalt Ferrite ◽  
Amorphous Film ◽  
Heat Treating ◽  
Fused Silica ◽  
Information Storage ◽  
Degree Of Crystallinity ◽  
Optical Information ◽  
Ferrite Films ◽  
Optical Information Storage

ABSTRACTFerrimagnetic oxide films have been shown to have potential for use as Magneto-optical information storage Materials. Cobalt ferrite films are particularly interesting for magneto optical information storage due to their high magneto optical rotation [1]. In this work, synthesized soluble cobalt (II) and iron (III) Methoxyethoxides were mixed in stoichiometric ratios for use as Co and Fe precursors in the preparation of CoFe2O4ferrimagnetic films. The decomposition of the precursors was characterized by thermogravimetric analysis.CoFe2O4 films were prepared by the dip coating technique using fused silica substrates. These films were then heat treated at temperatures ranging from 200°C to 600°C to study the transformation from an amorphous film to a crystalline film as determined by x-ray diffraction. The Magnetic hysteresis behavior of the films as a function of heat treating temperature and hence crystallinity was also studied. As a general trend, films having a greater degree of crystallinity exhibited larger values of saturation magnetization and remanent Magnetization. The amorphous film was found to exhibit the highest coercive field, but low values of saturation and remanent Magnetization. The effect of heat treating under the influence of a magnetic field of 1.88 kÖe was found to enhance crystallization only slightly and had very little effect on the magnetic properties of the film.

scholarly journals Side-chain Liquid Crystalline Polyesters for Optical Information Storage

1996 ◽  
Vol 7 (9) ◽  
pp. 768-776 ◽  
Author(s):  
P. S. Ramanujam ◽  
Christian Holme ◽  
Søren Hvilsted ◽  
Marianne Pedersen ◽  
Fulvio Andruzzi ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Information Storage ◽  
Side Chain ◽  
Optical Information ◽  
Optical Information Storage

Study on the life test of optical information storage materials

2021 ◽  
Author(s):  
Guangwei Zhang ◽  
Jihong Zheng ◽  
Zhaoxia Han ◽  
Chunxian Tao
Keyword(s):  
Information Storage ◽  
Optical Information ◽  
Life Test ◽  
Storage Materials ◽  
Optical Information Storage
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