Acoustic Transducers for Gas Sensing
ABSTRACT
The increasing commercial availability of quantum cascade lasers allows for the realization of gas detectors with very high sensitivity and specificity addressing the need to meet tight emissions regulations. We make use of double-resonant photo-acoustic spectroscopy coupled with QCL lasers to obtain background-free and inherently linear trace gas detectors. Our double-resonant MEMSPAS technology leverages custom MEMS designs with acoustic coupling engineering to push past the theoretical envelope of previous photo-acoustic platforms. This technology allows for extremely compact and versatile high-performance trace gas sensors.
BIOGRAPHY
Alaric is one half of the MEMSPAS technology team at NXTSENS. Throughout his PhD studies in semiconductor spectroscopy, he has developed cutting-edge scientific instrumentation for spectroscopy applications, establishing a solid expertise not only in optics and spectroscopy, but also in mechanical design, machining, and electronics. After joining NXTSENS in 2021, he leveraged his skills toward the development of the MEMSPAS technology in order to bring laboratory-grade gas sensing to field operations.