Modern fiber-optic communication systems generally include optical transmitters that convert electrical signals into optical signals, to carry the signal, optical amplifiers, and optical receivers to convert the signal back into an electrical signal.
Read More
We present the design and modeling of a novel photoacoustic spectroscopy (PAS) sensor capable of detecting molecular hydrogen at parts-per-billion (ppb) concentrations in air. Here, we introduce conductance–photoacoustic spectroscopy (ConPAS), an integrated sensing approach that combines conductance-based resonance modulation with quartz-enhanced photoacoustic spectroscopy in a single device. In one experiment, 532 nm output of a seeded pulsed Nd:YAG laser is employed as Raman pump source and a Raman shifter filled with gaseous.
Read More+48 22 538 72 19
ul. Postępu 14, 02-676 Warszawa, Poland