15 April 1993 Piezo-enhanced multireflection cells applied for in-situ measurements of trace-gas concentrations
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.142854; https://doi.org/10.1117/12.142854
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