Miniaturized MOEMS spectrometer technology for gas sensing

Abstract

VTT has developed a miniaturized mid-IR spectrometer system for gas sensing utilizing a surface micromachined tunable MOEMS Fabry-Perot Interferometer (FPI). The MOEMS FPI enables high-quality spectral measurements using a single-pixel detector, thus avoiding expensive linear array detectors. This measurement scheme increases sensor specificity and robustness compared to conventional Nondispersive Infrared (NDIR) sensors.