Chinese Optics Letters, 2004, 2 (7): 07423, Published Online: Jun. 6, 2006
Three-dimensional optical data storage using a solid immersion lens to focus a femtosecond laser pulse 
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140.3390 laser materials processing 210.4770 optical recording 320.2250 femtosecond phenomena 220.3630 lenses
Abstract
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 Ti:sapphire laser, the 5-layer reading and writing of data are achieved in fused silica and polyethylene methacrylate at a density of 1.1*10^(12) b/cm3. Some advantages of the employment of SIL have been discussed.
Fengtao He, Guanghua Cheng, Xiaoqiang Feng, Dongling Zhang, Zhao Cheng, Qing Liu, Wei Zhao, Guofu Chen, Xun Hou. Three-dimensional optical data storage using a solid immersion lens to focus a femtosecond laser pulse[J]. Chinese Optics Letters, 2004, 2(7): 07423.
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