Potentiality of the photothermal surface-displacement technique for precisely performed absorption measurement of optical coatings

authored by

Peter Zimmermann, Detlev Ristau, Eberhard Welsch, G. Langer, M. Reichling

Abstract

The absolute and comparative determination of the absorption of optical films by the Photothermal-Surface-Displacement-Technique (PTD) is only possible if the sample configuration is in agreement with the limits of the theoretical model. Carrying out simultaneous absorption measurements in the IR-region at λ=10, 6 μm by using laser calorimetry as well as the surface displacement technique, it can be demonstrated that the thermophysical properties of the film contribute to the probed surface displacement. The results of PTD measurements at a wavelength of 488 nm show, that there is a similar influence of the film properties on the PTD signal.

Organisation(s)

Institute of Quantum Optics

External Organisation(s)

Friedrich Schiller University Jena
Freie Universität Berlin (FU Berlin)
LAYERTEC GmbH

Type

Conference article

Journal

Journal De Physique. IV : JP

Volume

4

Pages

C7-623-626

ISSN

1155-4339

Publication date

04.1994

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Electronic version(s)

https://doi.org/10.1051/jp4:19947147 (Access: Unknown)