Thursday, August 17, 2017
Abstract-Optical and THz Evaluation of Components for Gas Sensing Spectroscopy in Hazardous Environments
Dan Sporea, Laura Mihai, Adelina Sporea, Daniel Ighigeanu, Daniel Neguţ
In this paper, we report for the first time a comparative investigation on gamma and electron beam irradiation effects on some mid-IR materials (ZnSe, CaF, BaF, and sapphire) used as components in trace gas detection systems, in the 15–100 THz spectral range. Optical transmittance/reflectance measurements were performed from UV to far IR (0.2–23 μm) on both non-irradiated and irradiated samples. These investigations were complemented by THz spectroscopy and imaging tests run under the same conditions.