Abstract
We demonstrate methane sensing using a photonic bandgap fiber-based gas cell and broadband idler pulses from a periodically-poled lithium niobate femtosecond optical parametric oscillator. The hollow core of the fiber was filled with a methane:nitrogen mixture, and Fourier transform spectroscopy was used to measure transmission spectra in the 3.15-3.35 µm methane absorption region. The method has applications in gas sensing for remote or hazardous environments and potentially at very low concentrations. © 2007 Optical Society of America.
Original language | English |
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Pages (from-to) | 11219-11224 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 15 |
Issue number | 18 |
DOIs | |
Publication status | Published - 9 Sept 2007 |