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Proceedings Paper

Piezo-enhanced multireflection cells applied for in-situ measurements of trace-gas concentrations
Author(s): H.-D. Kronfeldt
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Paper Abstract

We constructed a Herriott multipass cell with one piezo driven mirror to reduce Fabry-Perot- interference fringes in a pulsed infrared tunable diode laser spectrometer. The applicability of the cell is demonstrated by measuring weak lines in the (nu) 3-band of NO2 with a pulsed tunable diode laser spectrometer. The reduction of the fringes is discussed in dependence to the frequency of laser excitation, the frequency of the piezo-element, and the elongation of the piezo driven mirror. The multipass cell should become a part of a high sensitive TDL spectrometer for environmental research.

Paper Details

Date Published: 15 April 1993
PDF: 8 pages
Proc. SPIE 1780, Lens and Optical Systems Design, 17801L (15 April 1993); doi: 10.1117/12.142854
Show Author Affiliations
H.-D. Kronfeldt, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 1780:
Lens and Optical Systems Design
Hannfried Zuegge, Editor(s)

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