Recording material for holograms, manufacturing method thereof, recording medium for holograms, hologram recording method and hologram reproduction method
A recording material and holographic recording technology, applied in the properties/attributes of holograms, optical recording/reproduction/erasing methods, recording/reproduction/erasing using optical interference patterns, etc., can solve recording distortion, capacity reduction, etc. question
Inactive Publication Date: 2004-12-01
TDK CORPARATION
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Problems solved by technology
[0011] However, photopolymerizable photopolymers tend to shrink in capacity during photopolymerization, which can lead to recording distortion in some cases
Method used
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Embodiment
[0071] The present invention will be described in more detail through the following examples, but it should be understood that these examples are by no means limiting the present invention.
[0072] [Preparation of Optical Recording Medium Sample]
[0073] First, with anhydrous isopropanol ((CH(CH) 2 )OH) Tellurium tetraisopropoxide (Te(OCH(CH 3 ) 2 ) 4 ) diluted to 0.05mol / dm 3 , followed by 1,3-propanediol (C 3 h 6 (OH) 2 ) was further diluted to a tetraisopropoxide tellurium content of 10 wt% to prepare a solution. The solution was dripped onto the slide, and the solvent was evaporated to obtain a tellurium-containing thin film. Analysis of tellurium-containing thin films by X-ray diffraction revealed only amorphous broad peaks.
[0074] The resulting film was then heat-treated at 300°C in a nitrogen atmosphere. The heat-treated films were analyzed by X-ray diffraction, and it was observed that they could be attributed to TeO 2 and Te crystal peaks. The thin fil...
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Abstract
There are provided a recording material for holograms characterized by low corruption of recorded data with time, a manufacturing method thereof, a recording medium for holograms, a hologram recording method and a hologram reproduction method. The recording material for holograms of this invention comprises a metal oxide porous body provided with an oxygen donor substance in the pores. In the recording material for holograms, recording is accomplished by increasing the oxygen content of the metal oxide porous body with oxygen from the oxygen donor substance produced upon irradiation of recording light. The irradiated sites undergo no further alteration even with additional light irradiation, and the heat-induced volume fluctuations are negligible. The recording material for holograms exhibits reduced corruption of recorded data with time when subjected to repeated reproduction or when the recorded medium is stored for long periods.
Description
technical field [0001] The present invention relates to a hologram recording material, a manufacturing method thereof, a hologram recording medium, a hologram recording method and a hologram reproduction method. Background technique [0002] Recording media for computers and the like are generally optical recording media in which information is recorded by deformation, magnetic domain change or phase change of a recording layer by laser radiation, and they are widely used as CDs and DVDs. These optical recording media that have been put to practical use include write-once-read-many recording media using organic dyes and similar materials, magneto-optical recording media using amorphous magnetic films of rare earth transition metals, and phase recording media using chalcogenide thin films. Modified optical recording media. In these kinds of optical recording media, the above-mentioned change occurs when light energy of irradiated laser light is converted into thermal energy....
Claims
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IPC IPC(8): G03H1/02C08F2/48G03F7/00G03F7/004G03H1/00G03H1/04G11B7/0065G11B7/24
CPCG03H1/0272G03H2001/026G03F7/0043G03H1/02G03H2270/53G03H2001/0212G03F7/001G03H2240/24
Inventor 吉成次郎
Owner TDK CORPARATION