CONDITIONS FOR OPTIMUM PHOTOTHERMAL DISCRIMINATION OF SUBSURFACE THERMAL INHOMOGENEITIES

Authors
SEIDEL U GLAZOV A HAUPT K WALTHER HG BURT J BEIN BK PELZL J
Citation
U. Seidel et al., CONDITIONS FOR OPTIMUM PHOTOTHERMAL DISCRIMINATION OF SUBSURFACE THERMAL INHOMOGENEITIES, Journal de physique. IV, 4(C7), 1994, pp. 555-558
Citations number
4
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
4
Issue
C7
Year of publication
1994
Pages
555 - 558
Database
ISI
SICI code
1155-4339(1994)4:C7<555:CFOPDO>2.0.ZU;2-6
Abstract
We present calculated photothermal contrast functions arising from lat eral scanning of buried stripe and disk-shaped deviations in thermal c onductivity k. From the theoretical findings we derive the measuring c onditions in terms of the modulation frequency for which optimal photo thermal discrimination of subsurface thermal inhomogeneities can be ac hieved. The theoretical results have been verified experimentally by m easuring model samples, in which localized inhomogeneities were embedd ed.