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Feasibility of Femtosecond Laser Writing Multi-Layered Bit Planes in Fused Silica for Three-Dimensional Optical Data Storage
| Content Provider | Scilit |
|---|---|
| Author | Cheng-De, Li Dan-Ling, Wang Le, Luo Hong, Yang Zong-Ju, Xia Qi-Huang, Gong |
| Copyright Year | 2001 |
| Description | Journal: Chinese Physics Letters The ultrashort pulse laser writing multi-layered data bits in fused silica for three-dimensional optical data storage through the mechanism of optical damage induced by multi-photon absorption is demonstrated. The 800 nm, 120 fs Ti:Sapphire laser beam is focused into cubic samples with a 0.65 NA commercial microscope objective. The size of the recorded bits can be smaller than 0.5×0.5×2.5 µm as the laser pulse energy is lower than 300 nJ and the corresponding bit data storage density is $0.2×10^{12}$ $Tbits/cm^{3}$. Due to the aberration produced by the mismatch of the refractive indices between the recording material and its immersion medium, the longitudinal size of the recorded bit increases and the contrast of the bit to the surrounding uninfected zone decreases as the bit plane gets deeper. Hence, a relatively lower storage density of $0.05×10^{12}$ $Tbits/cm^{3}$ is realized. |
| Related Links | http://iopscience.iop.org/article/10.1088/0256-307X/18/4/325/pdf |
| Ending Page | 543 |
| Page Count | 3 |
| Starting Page | 541 |
| ISSN | 0256307X |
| e-ISSN | 17413540 |
| DOI | 10.1088/0256-307x/18/4/325 |
| Journal | Chinese Physics Letters |
| Issue Number | 4 |
| Volume Number | 18 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2001-03-21 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics Letters Quantum Science and Technology Femtosecond Laser Data Storage Optical Data Dimensional Optical Bit Planes Writing Multi Fused Silica Laser Writing |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
