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Optical Engineering

Miniaturized photothermal sensors as analytical tools for detection of very small volumes in chemical process control
Author(s): Bernd S. Seidel; Werner N. Faubel
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Paper Abstract

The application of photothermal interferometry and near-field thermal lensing as analytical tools in liquids is described. Using the transverse setup, the smallest detection volumes are achieved. The setups of both sensor systems are miniaturized, so adjustment and external influences are minimized. The sensitivities of both systems are demonstrated with the textile dye Reactive Red as an analyte.

Paper Details

Date Published: 1 February 1997
PDF: 4 pages
Opt. Eng. 36(2) doi: 10.1117/1.601218
Published in: Optical Engineering Volume 36, Issue 2
Show Author Affiliations
Bernd S. Seidel, Forschungszentrum Karlsruhe (Germany)
Werner N. Faubel, Forschungszentrum Karlsruhe (Germany)


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