Xunzhou Xiao

Dec 9, 2024 | onlinelibrary.wiley.com | Yue Yan |Xunzhou Xiao |Qinxue Nie |Zhen Wang

Graphical Abstract Sensitive Photothermal Gas Detection in a Fiber-Tip Cavity Selective, parts-per-billion level gas-phase chemical detection is achieved within a fiber-tip cavity by harnessing the strong light-matter interaction in a small cavity mode volume. This remarkable detection sensitivity is enabled by an innovative dual-enhanced photothermal technique.

Aug 23, 2024 | onlinelibrary.wiley.com | Yue Yan |Xunzhou Xiao |Qinxue Nie |Zhen Wang

1 Introduction Gas-phase chemical sensing plays a significant role in many disciplines such as breath analysis,[1] physiochemical processes,[2] and environmental monitoring.[3] The capability of detecting molecules on a microscopic scale, as seen in cell metabolism[4] and chemical kinetics,[5] provides a way for a profound understanding of the fundamental chemical and biological mechanisms.