Photothermal depth profiling is usually applied to inhomogeneous materials to localize the optical inhomogeneity or retrieve the thermal effusivity depth profile by simply monitoring the photothermal signal after the pump beam excitation. In this paper the different kinds of inverse problems related to photothermal depth profiling are discussed, and the solutions given by thermal wave backscattering (TWBS) and genetic algorithms (GAs) are compared. Finally, the different performances and limits of validity on known linear profiles are compared.

Photothermal depth profiling by thermal wave backscattering and genetic algorithms / LI VOTI, Roberto; Sibilia, Concetta; Bertolotti, Mario. - In: INTERNATIONAL JOURNAL OF THERMOPHYSICS. - ISSN 0195-928X. - STAMPA. - 26:6(2005), pp. 1833-1848. (Intervento presentato al convegno 15th Symposium on Thermophysical Properties tenutosi a BOULDER, CO nel JUN 22-27, 2003) [10.1007/s10765-005-8599-y].

Photothermal depth profiling by thermal wave backscattering and genetic algorithms

LI VOTI, Roberto;SIBILIA, Concetta;BERTOLOTTI, Mario
2005

Abstract

Photothermal depth profiling is usually applied to inhomogeneous materials to localize the optical inhomogeneity or retrieve the thermal effusivity depth profile by simply monitoring the photothermal signal after the pump beam excitation. In this paper the different kinds of inverse problems related to photothermal depth profiling are discussed, and the solutions given by thermal wave backscattering (TWBS) and genetic algorithms (GAs) are compared. Finally, the different performances and limits of validity on known linear profiles are compared.
2005
inverse problems; nondestructive evaluation; photothermal techniques; thermal conductivity; thermal effusivity.
01 Pubblicazione su rivista::01a Articolo in rivista
Photothermal depth profiling by thermal wave backscattering and genetic algorithms / LI VOTI, Roberto; Sibilia, Concetta; Bertolotti, Mario. - In: INTERNATIONAL JOURNAL OF THERMOPHYSICS. - ISSN 0195-928X. - STAMPA. - 26:6(2005), pp. 1833-1848. (Intervento presentato al convegno 15th Symposium on Thermophysical Properties tenutosi a BOULDER, CO nel JUN 22-27, 2003) [10.1007/s10765-005-8599-y].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/366511
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