Mid-infrared spectrometry can assist chemical sensing, environmental monitoring, and disease diagnosis. Conventional mid-infrared spectrometers are highly developed, but sometimes bulky, assemblies: a broadband thermal emitter, an interferometer, a separate broadband detector, external optics, and a sample cell, feeding in to Fourier-transform analyzer to break the signal down and analyze absorption at a variety of frequencies.
Quantum Cascade Laser at the Heart of Spectrometer on a Chip
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