Photoacoustic detection of microcracks of thin film head alumina using Nd:Yag laser irradiation

A. Chekanov, M. H. Hong, T. S. Low, Y. F. Lu

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Aoustic wave generation during Nd:YAG laser irradiation on thin film head alumina is studied. It is found that with proper selection of laser parameters, the acoustic waveforms observed are completely different for pristine head and head with preexisting microcracks. It has potential applications of thin-film heads and head wafers.

Original languageEnglish (US)
Pages (from-to)2863-2865
Number of pages3
JournalIEEE Transactions on Magnetics
Volume33
Issue number5 PART 1
DOIs
StatePublished - 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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