Low-power laser calorimetry with high resolution

Hans Willy Becker; Volker Scheuer; Theo T. Tschudi

doi:10.1117/12.192102

4 November 1994 Low-power laser calorimetry with high resolution

Hans Willy Becker, Volker Scheuer, Theo T. Tschudi

Proceedings Volume 2253, Optical Interference Coatings; (1994) https://doi.org/10.1117/12.192102
Event: 1994 International Symposium on Optical Interference Coatings, 1994, Grenoble, France

Abstract

A laser calorimeter, which is able to measure absorption as los as 1 - 10^-6 of incident laser power even with the use of an argon laser of less than 1 W at 514.5 nm, was developed. The required stability of the temperature background is achieved by a special design of the measurement system minimizing heat flow. Evaluation of absorption is realized by numerical simulations taking into account all relevant processes of heat generation and dissipation. Furthermore, absorption is determined according to ISO/DIS 11 551. Interference influences from the substrate are taken into account.

Citation Download Citation

Hans Willy Becker, Volker Scheuer, and Theo T. Tschudi "Low-power laser calorimetry with high resolution", Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); https://doi.org/10.1117/12.192102

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