Journal
OPTICS EXPRESS
Volume 27, Issue 11, Pages 15575-15584Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.015575
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Funding
- Ministerio de Economia y Competitividad [TEC2017-86271-R]
- Osterreichische Forschungsforderungsgesellschaft [861581]
- Ministerio de Educacion, Cultura y Deporte (Estancias de movilidad Jose Castillejo)
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This article presents the first implementation and the experimental characterization of a thermal infrared wavelength modulation laser heterodyne radiometer (WM-LHR) based on an external cavity quantum cascade laser. This novel WM-LHR system has demonstrated calibration-free operation, a superior signal to noise ratio and, more importantly, has opened the door for cost-efficient wide spectral range laser heterodyne radiometry in the near future. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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