Tunable Laser Monitors Microbes in Packaged Foods, Medical Supplies

Abstract

Combining a tunable diode laser absorption spectrometer (TDLAS) with wavelength modulation (WM) yields an instrument that can rapidly detect carbon dioxide to monitor microbial growth, including in packaged food products and medical instruments and supplies, according to Jie Shao at Zhejiang Normal University in Jinhua, China, and his collaborators there and at Umea University in Umea, Sweden. Details appeared 20 March 2016 in Applied Optics (doi:10.1364/AO.55.002339).