Micron scale photothermal imaging

Citation
D. Fournier et al., Micron scale photothermal imaging, INT J TH SC, 39(4), 2000, pp. 514-518
Citations number
10
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
ISSN journal
12900729 → ACNP
Volume
39
Issue
4
Year of publication
2000
Pages
514 - 518
Database
ISI
SICI code
1290-0729(200004)39:4<514:MSPI>2.0.ZU;2-G
Abstract
In this paper, we present various experimental results which demonstrate th e ability of photothermal methods to perform heat diffusion imaging at the micron scale. Photoreflectance microscopy measurements have been performed on a composite sample presenting a strong anisotropy of thermal properties and on microelectronic: devices. We will then introduce the CCD array photo thermal microscopy which permits the acquisition of a complete image in a s ingle shot, without moving the sample. A stroboscopic technique must be use d in order to adjust to the relatively low frame rate of the CCD camera, We will discuss two cases: homodyne and heterodyne detection. (C) 2000 Editio ns scientifiques et medicales Elsevier SAS.