論文

査読有り
2001年3月

Near-field optical recording on a pre-grooved phase-change disk in the blue-violet

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

40
3B
開始ページ
1821
終了ページ
1826
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1143/JJAP.40.1821
出版者・発行元
INST PURE APPLIED PHYSICS

Near-field optical recording was implemented on a pre-grooved phase-change disk by using a phi 1 mm superhemispherical solid immersion lens (SIL) of 1.5 numerical aperture. The SIL unit was mounted on a two-axis actuator for enabling both gap-height and tracking controls. The gap height was precisely adjusted with a capacitance formed between the SIL and disk materials. Groove structures were fabricated on a glass substrate by a reactive-ion-etching (RIE) process and flattened with spin-on-glass (SOG) coating for obtaining reliable push-pull tracking error signals. The phase-change layer stack was optimized by a vector diffraction analysis in order to maximize evanescent coupling at the gap height as small as 50 nm. A bit density of 80 nm was demonstrated on the land of a pre-grooved disk at the wavelength of 407 nm.

Web of Science ® 被引用回数 : 9

リンク情報
DOI
https://doi.org/10.1143/JJAP.40.1821
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000170771600072&DestApp=WOS_CPL
ID情報
  • DOI : 10.1143/JJAP.40.1821
  • ISSN : 0021-4922
  • Web of Science ID : WOS:000170771600072

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