Experiments of noble optical floppy disk drive using phase change optical medium and quasi-near field optical head

Kenya Goto, Young Joo Kim, Yutaka Hasegawa

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

A lensless optical floppy disk drive which does not have any optical lens between the optical head and the phase change (PC) type floppy disk medium is developed. It is shown that writing and reading is done with no lens between the head and the disk because an information bit size is mostly limited by diffraction effect on any optical element used and so, it is inevitable for a more higher density recording that no lens should be used, and that the final optical system for a higher density optical storage will be a near field optical system.

Original languageEnglish
Pages (from-to)62-64
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3864
Publication statusPublished - 1999
EventProceedings of the 1999 Joint International Symposium on Optical Memory and Optical Optical Data Storage (ISOM/ODS'99) - Koloa, HI, USA
Duration: 1999 Jul 121999 Jul 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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