Piezo-enhanced multireflection cells applied for in-situ measurements of trace-gas concentrations

H.-D. Kronfeldt

doi:10.1117/12.142854

15 April 1993 Piezo-enhanced multireflection cells applied for in-situ measurements of trace-gas concentrations

H.-D. Kronfeldt

Proceedings Volume 1780, Lens and Optical Systems Design; 17801L (1993) https://doi.org/10.1117/12.142854
Event: Optical Systems Design '92, 1992, Berlin, Germany

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.

Citation Download Citation

H.-D. Kronfeldt "Piezo-enhanced multireflection cells applied for in-situ measurements of trace-gas concentrations", Proc. SPIE 1780, Lens and Optical Systems Design, 17801L (15 April 1993); https://doi.org/10.1117/12.142854

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