Recording and readout of a cholesteric liquid crystal based multilayer disk

Wolfgang Schlichting, Sadeg Faris, Bunsen Fan, John Haag, Zhijian Lu, Steven Kane, Le Li, Tom Milster, Hui Luo

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

A novel approach to optical storage based on layering of cholesteric liquid crystal (CLC) media is being investigated. CLC media have been chosen due to their unique property of selective reflection, whereby a CLC film reflects light of a characteristic wavelength and polarization handedness with near-zero loss while transmitting all other light. This new technology has the potential of enabling terabyte storage on a single optical disk. A two-layer disk with 5 μm data marks was recorded and crosstalk-free readout was demonstrated by selecting the correct circular polarization state of a 514 nm laser.

Original languageEnglish (US)
Pages (from-to)587-588
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume36
Issue number1 B
DOIs
StatePublished - Jan 1 1997

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Keywords

  • Cholesteric liquid crystal
  • Circular polarization
  • Multilayer optical disk
  • Optical data storage

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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