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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 34 — Dec. 1, 2006
  • pp: 8653–8658

Optical data storage system with a planoellipsoidal solid immersion mirror illuminated directly by a point light source

Yaoju Zhang  »View Author Affiliations

Applied Optics, Vol. 45, Issue 34, pp. 8653-8658 (2006)

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A new solid immersion mirror called the planoellipsoidal (PE) solid immersion mirror (SIM) for the near-field optical storage is proposed and developed. The PE SIM has a small aperture on the apex of the ellipsoidal surface. The intensity distribution of the transmitted field is calculated by using the vector diffraction theory. Compared with a conventional solid immersion lens (SIL), the proposed PE SIM has the following features. A PE SIM replaces three optical elements of the collimator, objective, and SIL in a conventional SIL optical storage system, so that the optical system equipped with the PE SIM is not only simple in its assembly but is also effective in making an optical head unit. The PE SIM obtains light from a point light source and focuses it directly on the recording layer, which may be useful for a compact optical data storage system. The convex ellipsoidal surface of the PE SIM can reduce the risk of the SIM touching the surface of the recording medium. In addition, the spreading of the spot size with the increase of distance is very small in the PE SIM.

© 2006 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(210.0210) Optical data storage : Optical data storage
(220.4830) Optical design and fabrication : Systems design
(230.4040) Optical devices : Mirrors
(260.1960) Physical optics : Diffraction theory

ToC Category:
Optical Data Storage

Original Manuscript: July 24, 2006
Manuscript Accepted: July 29, 2006

Virtual Issues
Vol. 2, Iss. 1 Virtual Journal for Biomedical Optics

Yaoju Zhang, "Optical data storage system with a planoellipsoidal solid immersion mirror illuminated directly by a point light source," Appl. Opt. 45, 8653-8658 (2006)

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