What is it about?
This article explains a simple modification of a radiometer first described in an issue of Optics Express in 2014. The modification improved the signal-to-noise ratio by a factor of up to two. Though the modification is simple, it and adaptations based on the same principle could significantly expand the potential uses of this technology.
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This page is a summary of: Multiple receivers in a high-resolution near-infrared heterodyne spectrometer, Optics Express, October 2016, Optical Society of America (OSA),
DOI: 10.1364/oe.24.023838.
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