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The development of a compact NO QEPAS-based sensor platform employing a CW DFB-QCL will be reported. A detection sensitivity of 4 ppbv was achieved with a 1-sec averaging time for the 1900.08 cm−1 NO line.
Recent advances in the development of sensors based on the use of quantum cascade lasers (QCLs) for the sensitive, selective detection, quantification and monitoring of both small and large molecular gas species with resolved and unresolved spectroscopic features respectively will be reported.
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