Hollow-core Bragg fiber and its application in trace gas sensing

Autor:	Shi, Lichao, Zhang, Wei, Jin, Jie, Huang, Yidong, Peng, Jiangde
Zdroj:	Proceedings of SPIE; December 2010, Vol. 7990 Issue: 1 p799008-799008-7
Abstrakt:	A hollow-core Bragg fiber with the fundamental photonic crystal bandgap around 3000 cm-1was fabricated and injected with methane/nitrogen mixed gas with 0.5% methane concentration. A very sharp absorption line of methane gas around 3000 cm-1within the transmission band of hollow-core Bragg fiber was observed using the Fourier transform infrared spectroscopy, which demonstrated that hollow-core Bragg fiber can be used as a mid-infrared waveguide and minimized gas cell simultaneously, showing great potential in trace gas sensing.
Databáze:	Supplemental Index
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