Performance of a write-once multilayer optical disk that uses transparent recording material with an optical switching layer

Fung Hsu Wu, Han Ping D. Shieh, Der Ray Huang, Tom D. Milster

Research output: Contribution to journalArticle

2 Scopus citations


A volumetric optical disk that has multiple transparent films with optical switching layers is used as a recording medium to increase the number of recording layers. In the disk the optical switching layer is adapted to reduce decay of laser energy and increase reading and recording sensitivity. Well-defined marks of ∼100-nm depth can be placed precisely on the transparent films by a focused laser beam. Writing and reading of a four-layer recordable disk, fabricated by molding and spin, bonding, have been demonstrated experimentally. The volumetric disk can achieve a nigh recording capacity with conventional optical pickups.

Original languageEnglish (US)
Pages (from-to)5498-5502
Number of pages5
JournalApplied optics
Issue number29
StatePublished - Oct 10 2004


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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