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Optics Letters

Optics Letters


  • Vol. 18, Iss. 4 — Feb. 15, 1993
  • pp: 305–307

High-numerical-aperture lens system for optical storage

S. M. Mansfield, W. R. Studenmund, G. S. Kino, and K. Osato  »View Author Affiliations

Optics Letters, Vol. 18, Issue 4, pp. 305-307 (1993)

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We describe a new type of optical pickup for use in high-density optical storage systems. By changing a conventional pickup design to include a glass element between the objective and the disk, the transverse resolution of the system can be increased by as much as a factor of 1.5. This system is also less sensitive than conventional systems to variations in disk thickness and disk tilt. We demonstrate how the system has been used as a microscope to inspect an optical disk and describe possible design configurations for an optical pickup.

© 1993 Optical Society of America

Original Manuscript: August 28, 1992
Published: February 15, 1993

S. M. Mansfield, W. R. Studenmund, G. S. Kino, and K. Osato, "High-numerical-aperture lens system for optical storage," Opt. Lett. 18, 305-307 (1993)

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