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Proceedings Paper

Calibration procedures for a 10.6-um laser calorimeter
Author(s): Michael Kennedy; Detlev Ristau; Gabriel Dumitru; Dan G. Sporea; Clementina A. Timus
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Paper Abstract

The paper presents the theoretical background of laser calorimetry as a method to investigate the absorptance of optical components, according to the recently adopted ISO Standard 11 551. An experimental set-up for optical absorption measurements, including a cw CO2 laser and a calorimetric chamber, is presented. The calibration of the laser calorimetric set-up is also described. The calibration involved several steps: laser power calibration, evaluation of chamber sensitivity, electrical calibration using electrically heated samples and optical calibration utilizing 100% absorptance samples. There were measured the conversion factors for the laser power and for the sample temperature; there were calculated over-all correction factors for the different substrates and they could be placed within +/- 4% around their mean value.

Paper Details

Date Published: 2 July 1998
PDF: 5 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312718
Show Author Affiliations
Michael Kennedy, Laser Zentrum Hannover eV (Germany)
Detlev Ristau, Laser Zentrum Hannover eV (Germany)
Gabriel Dumitru, National Institute for Laser, Plasma, and Radiation Physics (Switzerland)
Dan G. Sporea, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Clementina A. Timus, National Institute for Laser, Plasma, and Radiation Physics (Romania)

Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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