Long-term readout of photorefractive memories by using a storage/amplification two-crystal configuration
We propose and demonstrate a new long-term readout holographic memory using two photorefractive crystals. Images are stored in the first crystal and reconstructed with low-intensity beams, then amplified in the second crystal operating in a high-gain low-noise configuration. By using combinations of...
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| Veröffentlicht in: | Optics letters 1992-12, Vol.17 (23), p.1712-1714 |
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| container_title | Optics letters |
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| creator | RAJBENBACH, H BANN, S HUIGNARD, J.-P |
| description | We propose and demonstrate a new long-term readout holographic memory using two photorefractive crystals. Images are stored in the first crystal and reconstructed with low-intensity beams, then amplified in the second crystal operating in a high-gain low-noise configuration. By using combinations of LiNbO(3)/Bi(12)SiO(20) and BaTiO(3)/Bi(12)SiO(20) as storage/amplification crystals, continuous readout of the angularly coded memories for more than 20 h and 40 min, respectively, is experimentally achieved. A lower bound for the index modulation to be allocated to one stored image in LiNbO(3)is estimated. |
| doi_str_mv | 10.1364/OL.17.001712 |
| format | Article |
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Images are stored in the first crystal and reconstructed with low-intensity beams, then amplified in the second crystal operating in a high-gain low-noise configuration. By using combinations of LiNbO(3)/Bi(12)SiO(20) and BaTiO(3)/Bi(12)SiO(20) as storage/amplification crystals, continuous readout of the angularly coded memories for more than 20 h and 40 min, respectively, is experimentally achieved. 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| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 1992-12, Vol.17 (23), p.1712-1714 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_734069940 |
| source | Optica Publishing Group Journals |
| subjects | Exact sciences and technology Fundamental areas of phenomenology (including applications) Holography Optics Physics |
| title | Long-term readout of photorefractive memories by using a storage/amplification two-crystal configuration |
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