論文

査読有り
2000年2月

Near-field phase-change optical recording of 1.36 numerical aperture

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
  • Ichimura, I
  • ,
  • K Kishima
  • ,
  • K Osato
  • ,
  • K Yamamoto
  • ,
  • Y Kuroda
  • ,
  • K Saito

39
2B
開始ページ
962
終了ページ
967
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1143/JJAP.39.962
出版者・発行元
JAPAN J APPLIED PHYSICS

A bit density of 125 nm was demonstrated through near-field phase-change (PC) optical recording at the wavelength of 657 nm by using a supersphere solid immersion lens (SIL). The lens unit consists of a standard objective and a phi 2.5 mm SIL. Since this lens size still prevents the unit from being mounted on an air-bearing slider, we developed a one-axis positioning actuator and an active capacitance servo for precise gap control to thoroughly investigate near-field recording. An electrode was fabricated on the bottom of the SIL, and a capacitor was formed facing a disk material. This setup realized a stable air gap below 50 nm, and a new method of simulating modulation transfer function (MTF) optimized the PC disk structure at this gap height. Obtained jitter of 8.8% and a clear eye-pattern prove that our system successfully attained the designed numerical-aperture (NA) of 1.36.

Web of Science ® 被引用回数 : 32

リンク情報
DOI
https://doi.org/10.1143/JJAP.39.962
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000087538700061&DestApp=WOS_CPL
ID情報
  • DOI : 10.1143/JJAP.39.962
  • ISSN : 0021-4922
  • Web of Science ID : WOS:000087538700061

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