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Gas coupled laser photothermal interferometry for non-destructive and non-contact studies of biological specimens
K Haupt1, D Bicanic, E Gerkema
1Physikalisch-Astronomische-Technikwissenschaftliche Fakultät, Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, Jena, Germany.
Bioscience, Biotechnology, and Biochemistry
|June 1, 1995
Abstract:
Photothermal signals from some biological materials exposed to modulated CO2 laser radiation were detected using the concept of photothermal interferometry. The magnitude and a phase of the signals were found to contain qualitative information about subsurface structural changes and variations of moisture content.