Spectroscopic applications of a widely tunable (6.8 to 12.5 um) cw DFG laser spectrometer

Torsten Blanke; Ulrike Willer; Wolfgang Schade

doi:10.1117/12.364174

16 September 1999 Spectroscopic applications of a widely tunable (6.8 to 12.5 um) cw DFG laser spectrometer

Torsten Blanke, Ulrike Willer, Wolfgang Schade

Proceedings Volume 3821, Environmental Sensing and Applications; (1999) https://doi.org/10.1117/12.364174
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

Tunable mid-infrared radiation in the spectral range between 6.8 micrometer and 12.5 micrometer is generated via nonlinear optical difference-frequency-generation in AgGaS₂. The input radiation that is needed for this process is provided by two high-power single mode diode-lasers. The combination of this MIR-laser source with a MIR-detector and lock-in detection technique has very interesting applications in spectroscopy. The on-line performance of this MIR-spectrometer is shown as single rotational lines of molecules are probed in the gas phase and in the vapor extracted from contaminated soil samples.

Citation Download Citation

Torsten Blanke, Ulrike Willer, and Wolfgang Schade "Spectroscopic applications of a widely tunable (6.8 to 12.5 um) cw DFG laser spectrometer", Proc. SPIE 3821, Environmental Sensing and Applications, (16 September 1999); https://doi.org/10.1117/12.364174

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