Article,

Nondestructive testing by using long-wave infrared interferometric techniques with CO2 lasers and microbolometer arrays

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Appl. Opt., 52 (1): A56--A67 (January 2013)
DOI: 10.1364/AO.52.000A56

Abstract

We describe three different interferometric techniques (electronic speckle pattern interferometry, digital holographic interferometry, and digital shearography), using a long-wave infrared radiation produced by a CO2 laser and recorded on a microbolometer array. Experimental results showing how these methods can be used for nondestructive testing are presented. Advantages and disadvantages of these approaches are discussed.

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