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  • Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP)
  • OSA Technical Digest (Optica Publishing Group, 2018),
  • paper JM4A.12
  • https://doi.org/10.1364/3D.2018.JM4A.12

Higher harmonic detection and sensitivity to instrument drifts in trace-gas sensors

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Abstract

We show the advantages of wavelength modulation spectroscopy for improving sensitivity in trace-gas detection. This is achieved using higher harmonic detection to probe spectral features of the absorption signal around linecenter and in line-wing region.

© 2018 The Author(s)

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