Calorimetric measurement of optical absorption and transmissivity with sub-ppm sensitivity

authored by

Uwe Willamowski, Tobias Gross, Detlev Ristau, Herbert Welling

Abstract

We report on the development of a laser calorimeter with sub ppm sensitivity. Besides the adaptation of the sample holder for low loss measurements, different ways of evaluating calorimetric data and methods for the detection and compensation of scatter irradiation effects as well as other signal distortions are discussed. As laser sources, an AR- laser and a Nd-YAG laser with frequency doubling option are employed for the measurements. The system is used for the characterization of different types of KTP crystals for frequency conversion. The results show a distinct polarization dependency of the absorption, throughout all crystals investigated.

External Organisation(s)

Laser Zentrum Hannover e.V. (LZH)

Type

Paper

Pages

148-158

No. of pages

11

Publication date

19.08.1996

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications, Applied Mathematics, Electrical and Electronic Engineering

Electronic version(s)

https://doi.org/10.1117/12.246744 (Access: Unknown)