Lots of things such as absorbance detection, trace gas sensors, spectroscopy, photoacoustic spectroscopy, photoacoustic, and sensitivity are described inside this paper. The paper presents info like wavelength range, wavelength, detection module, optical, and noise.
Inside this paper the reader can learn information around gas, absorption, sensor networks, laser, power consumption, and sensor. These are grabbed from the paper:
We introduce a novel laser spectroscopic trace-gas sensor platform, LaserSPECks that integrates recently developed miniature quartz-enhanced photoacoustic spectroscopy (QEPAS) gas sensing technology. This universal platform uses infrared laser spectroscopy detect and quantify numerous gas species at part-per-million to part-per-billion (ppm-ppb) concentrations . Traditional gas sensing devices capable of the same sensitivity and speciﬁcity are several orders of magnitude larger in size, cost, and power consumption.
In addition, this paper presents info around microresonator, sensors, detection, prototype, and quadrature detection.