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Title: Femtosecond laser application for high capacity optical data storage
Authors: Hong, M.H. 
Luk'yanchuk, B.
Huang, S.M.
Ong, T.S.
Van, L.H.
Chong, T.C. 
Issue Date: Sep-2004
Citation: Hong, M.H.,Luk'yanchuk, B.,Huang, S.M.,Ong, T.S.,Van, L.H.,Chong, T.C. (2004-09). Femtosecond laser application for high capacity optical data storage. Applied Physics A: Materials Science and Processing 79 (4-6) : 791-794. ScholarBank@NUS Repository.
Abstract: A femtosecond (fs) laser application for multi-layer optical recording is investigated. Information patterns at different layer depths were written inside a transparent glass substrate due to micro-void formation by fs laser ablation, which causes re-distribution in glass materials and a refractive index modification. The information bits recorded in a single layer can be retrieved clearly without interference from the neighboring layers. A fs laser irradiation of a transparent polymer matrix (doped with fluorescent materials for use as low-cost recording media) is also studied. A fs laser induced photo-chemical reaction changes the chemical properties of the fluorescent materials and records information bits inside the matrix. With an ultra-fast laser as a new light source, 3D optical recording can be available for high capacity data storage up to 1 TB per disc.
Source Title: Applied Physics A: Materials Science and Processing
ISSN: 09478396
Appears in Collections:Staff Publications

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