Author:
Miao Yin-Ping ,Jin Wei ,Yang Fan ,Lin Yue-Chuan ,Tan Yan-Zhen ,Hoi Lut , ,
Abstract
We report our recent work on the development of a highly sensitive gas detection technique-photothermal interferometry spectroscopy with hollow-core optical fibers. The basic principle of operation, generation and detection of dynamic photothermal phase modulation, and method to improve the response time of the hollow-core fiber sensors are described. The technique has ultra-high sensitivity and dynamic range, and the measurement is not affected by reflection/scattering and other non-absorbing losses. Sensors based on such a technique could be made compact in size with remote detection, multiplexing and networking capability, which would enable a range of high performance applications in environmental, medical and safety monitoring.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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