发明名称 |
Hologram recording/reproducing method and hologram recording/reproducing device |
摘要 |
A method for holographic recording and reproducing includes a recording process and a reproducing process. In the recording process, a coherent reference beam is spatially modulated in accordance with information to be recorded to generate a signal beam, and the signal beam is converged. The converged signal beam enters and passes through a recording medium made of a photosensitive material. A diffraction grating area according to a light interference pattern is created in a portion where a 0th-order beam and a diffraction beam of the signal beam interfere with each other inside the recording medium. In the reproducing process, a reproduced wave corresponding to the signal beam is generated by illuminating the diffraction grating area with the reference beam. |
申请公布号 |
US2005231775(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
US20050522687 |
申请日期 |
2005.05.06 |
申请人 |
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发明人 |
KUBOTA YOSHIHISA;TANAKA SATORU;ITOH YOSHIHISA;TACHIBANA AKIHIRO;KURODA KAZUO;SUGIURA SATOSHI |
分类号 |
G03H1/04;G03H1/16;G03H1/26;G11B7/0065;G11B7/125;G11B7/135;G11B7/24;(IPC1-7):G02B5/32 |
主分类号 |
G03H1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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