Laser writing on metal-silicon bilayers for optical storage. I. Optical properties

K. Y. Ahn*, T. H. Di Stefano, N. J. Mazzeo, S. R. Herd, King-Ning Tu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Various bilayer structures consisting of metal and silicon were investigated as possible candidates for the optical recording medium. The silicon-on-metal bilayers offer tunability with a reasonable thickness of Si in the visible spectrum with a typical reflectivity less than 5%. Of the two possible writing processes, the low-power process of silicide formation has a threshold power of 30 mW for a Rh-Si bilayer which provides a reflectivity change in excess of 40%. The absence of raised rims around the written spots offers a smooth morphology that is compatible with encapsulation.

Original languageEnglish
Pages (from-to)3777-3783
Number of pages7
JournalJournal of Applied Physics
Volume53
Issue number5
DOIs
StatePublished - 1 Dec 1982

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