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Proceedings Paper

Near-field phase-change optical recording using a GaP hemispherical lens
Author(s): Kusato Hirota; Tomas D. Milster; Kei Shimura; Yan Zhang; Joshua Sseunhyeun Jo
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Paper Abstract

The data density ofthe optical recording medium depends on the focused beam spot size, which is limited by diffraction. The beam spot size can be reduced by using a shorter wavelength light source or a larger NA objective lens. Recently, near-field optical techniques using evanescent light, have been developed to overcome the diffraction limit of far-field optics.

Paper Details

Date Published: 28 June 1999
PDF: 3 pages
Proc. SPIE 3864, Joint International Symposium on Optical Memory and Optical Data Storage 1999, 386437 (28 June 1999); doi: 10.1117/12.997634
Show Author Affiliations
Kusato Hirota, Toray Industries Inc. (Japan)
Tomas D. Milster, Optical Sciences Ctr./Univ. of Arizona (United States)
Kei Shimura, Toshiba Corp. (Japan)
Yan Zhang, Optical Sciences Ctr./Univ. of Arizona (United States)
Joshua Sseunhyeun Jo, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 3864:
Joint International Symposium on Optical Memory and Optical Data Storage 1999
Shigeo R. Kubota; Ryuichi Katayama; Douglas G. Stinson, Editor(s)

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