Pupil-plane filtering for improved signal detection in an optical data-storage system incorporating a solid immersion lens

Tom D. Milster, Kei Shimura, Joshua S. Jo, Kusato Hirota

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The data-signal detection of an optical data-storage system with a solid immersion lens (SIL) was improved using a pupil-plane filtering technique. The technique improves the signal contrast and reduces the cancellation of positive and negative signal contributions in the pupil. Furthermore, the technique makes the signal contrast less sensitive for relatively large gap widths.

Original languageEnglish (US)
Pages (from-to)605-607
Number of pages3
JournalOptics letters
Volume24
Issue number9
DOIs
StatePublished - May 1 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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