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Non-linear photothermal response of thin solid films and coatings

✍ Scribed by V. Gusev; A. Mandelis; R. Bleiss

Book ID
103954726
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
769 KB
Volume
26
Category
Article
ISSN
0921-5107

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✦ Synopsis

The analysis of the thermal-wave second-harmonic generation in thin films and coatings is presented. It is demonstrated theoretically that thicknesses much less than the thermal-wave penetration (diffusion) length may be measured from the detection of the second-harmonic thermal-wave phase variations. The theory developed describes the crucial dependence of the depth resolution of the resulting non-linear photothermal microscope on the material non-linear parameters.

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