| Three-dimensional optical data storage using a solid immersion lens to focus a femtosecond laser pulse |
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| 作者姓名： | 贺锋涛 程光华 冯晓强 张东玲 程昭 刘青 赵卫 陈国夫 侯洵 |
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| 作者单位： | State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068，State Key Laboratory of Transient Optics and Technology，Xi'an Institute of Optics and Precision Mechanics，Chinese Academy of Sciences，Xi’an 710068 |
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| 基金项目： | This work was supported by the Innovation Foundation of the Chinese Academy of Sciences under Grant No. 40001043. |
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| 摘 要： | A solid immersion lens (SIL) has been applied to the writing and reading of three-dimensional optical data storage in transparent materials. Using a SIL with n=1.516 to focus a 150-fs, 800-nm Tiisapphire laser, the 5-layer reading and writing of data are achieved in fused silica and polyethylene methacrylate at a density of 1.1×10 2 b/cm3. Some advantages of the employment of SIL have been discussed.
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