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Updated: Jul 6, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
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Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Development of an IR tunable diode laser absorption spectrometer for trace humidity measurements at atmospheric

C S Edwards1, G P Barwood, P Gill

  • 1Centre for Length Metrology, National Physical Laboratory, Queens Road, Teddington, Middlesex TW11 0LW, UK.

Applied Optics
|March 8, 2008
PubMed

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