Author:
Zhu Yi,Guo Anbo,Xu Jiangtao,Zhang Weijian,Zhang Zhengwei,Zeng Xianglong
Abstract
A compact photothermal evanescent-field NH3 detection with detection limit of 32 ppm and response time less than 30 seconds is experimentally achieved in a tapered nanofiber at communication band via all-fiber acousto-optic heterodyne interferometry.