Two-wave mixing interferometer for ultrasonic NDT in defect detection

Chan Hsiao Ho, Ju Yi Lee, Hseuh Ching Shih, Jiunn Haur Shaw, Yung Hui Liu

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Our study was focused on ultrasound detection and nondestructive measurement experiments based on the TWMI technique. We modified the conventional TWMI by means of re-uses the wasted reference, and increased the optical efficiency. The configuration of our new designed TWMI system will be introduced and some nondestructive measurement applications are demonstrated. Experimental results show that TWMI's sensitivity is good enough to see the details of ultrasound and can be applied in defect detection.

Original languageEnglish
Pages (from-to)359-363
Number of pages5
JournalKey Engineering Materials
Issue numberI
StatePublished - 2004
EventProceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of
Duration: 3 Nov 20037 Nov 2003


  • Defect detection
  • Two-Wave Mixing Interferometer (TWMI)
  • Ultrasound


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