Writing and erasing efficiency analysis on optical-storage media using scanning surface potential microscopy

S.-H. Chen, S.-P. Hou, J.H. Hsieh, H.K. Chen, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)


The authors demonstrate a rapid and convenient method for the determination of writing and erasing laser powers in phase-change media based on scanning surface potential microscopy using a conductive tip. Commercially available digital versatile disks that are rewritable with initialization process are measured in experiments. The results of measurement show that when the disk is rotating at 3.5 ms linear velocity, the adequate writing and erasing of laser power are 10-15 and 4-8 mW, respectively. The critical laser power for crystallization conversion is 8 mW. The method used for this research can be satisfyingly applied to the development of new phase-change recording materials. © 2006 American Vacuum Society.
Original languageEnglish
Article number005606JVA
Pages (from-to)2003-2007
Number of pages5
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Issue number6
Publication statusPublished - 17 Nov 2006
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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