Topic: Agriculture & Food
Qing Pan, PhD
Towards broadband mid-infrared trace gas sensing using a supercontinuum source
Recent advancement of mid-infrared supercontinuum (SC) light sources has open up new possibilities in laser-based trace gas sensing, supporting the detection of multiple gas species in parallel. In this contribution, I will present our most recent development of a fully integrated SC-based trace gas sensor featuring sub-ppm sensitivity. Field application involving simultaneous detection of up to seven species for quality control of stored fruits will be demonstrated. A novel upconversion-based detection method will also be briefly covered, highlighting the advantages of SC sources for future trace gas sensing research.