2019 CAP Congress / Congrès de l'ACP 2019

Photonic Device for Gas Detection

6 Jun 2019, 14:15

15m

BLU 10011 (Simon Fraser University)

Oral (Non-Student) / Orale (non-étudiant(e)) Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) R2-3 Quantum Optics and Ion traps (DAMOPC) | Optique quantique et pièges d'ions (DPAMPC)

Speaker

Dr Gautam Das (Gautam)

Description

We have developed a photonic device for the detection of gases at sub-ppmv levels of concentration using a modified Intra Cavity Absorption Spectroscopy (ICAS) technique [Technique for the detection of trace gases using intracavity fiber laser absorption spectroscopy (IFLAS), G Das - US Patent 9,705,277, 2017]. In the new ICAS technique, the system was operated near the laser threshold condition in order to increase sensitivity. The device can be used for environmental monitoring. The novelty and the working principle of the system, along with some recent experimental results based on both Acetylene (C2H2) and Nitrous oxide (N2O) gases will be presented. The research was financially supported by Natural Sciences and Engineering Research Council of Canada (NSERC), Canada Foundations for Innovations (CFI), Ontario Center of Excellence (OCE) and Nutrien.