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Proceedings Paper

Three-dimensional optical storage recording by microexplosion in a doped PMMA polymer
Author(s): Huohong Tang; Hongfang Jiu; Bing Jiang; Jianwen Cai; Hui Xing; Qijin Zhang; Wenhao Huang; Andong Xia; Qin Liu; Guanghua Cheng; Guofu Chen
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Paper Abstract

Three-dimensional optical data storage realized by microexplosion based on a multi-photon absorption process is a promising method to fabricate optical read-only memory with large recording capacity. The writing of multi-layered data bits inside a PMMA block doped with rare-earth ions (Sm3+ and Ce3+) under multi-photon absorption excited by a 800nm femtosecond (fs) pulsed laser was reported. The fs pulsed laser beam was focused into the sample with a microscope objective (N.A.= 0.65 40X), and bits were recorded as structurally altered regions which have high contrast in refraction index and fluorescence intensity. The recorded bits could be retrieved parallel by transmission using a conventional optical microscope or be read out serially by fluorescence signal of the structurally altered region excited by a 514.5nm laser using a reflect-type confocal microscope. Experimental results of three-dimensional recording and reading with 4-um in-plane bit spacing and 8-um inter-plane spacing in eight layers were presented. The structure changed in the material before and after the laser irradiation was discussed.

Paper Details

Date Published: 3 January 2005
PDF: 6 pages
Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); doi: 10.1117/12.576587
Show Author Affiliations
Huohong Tang, Univ. of Science and Technology of China (China)
Hongfang Jiu, Univ. of Science and Technology of China (China)
Bing Jiang, Univ. of Science and Technology of China (China)
Jianwen Cai, Univ. of Science and Technology of China (China)
Hui Xing, Univ. of Science and Technology of China (China)
Qijin Zhang, Univ. of Science and Technology of China (China)
Wenhao Huang, Univ. of Science and Technology of China (China)
Andong Xia, Univ. of Science and Technology of China (China)
Institute of Chemistry, CAS (China)
Qin Liu, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Guanghua Cheng, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Guofu Chen, Xi'an Institute of Optics and Precision Mechanics, CAS (China)


Published in SPIE Proceedings Vol. 5643:
Advances in Optical Data Storage Technology
Duanyi Xu; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)

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