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Conferences > SOF > 2022 > SoTh1H > SoTh1H.2

Sub-ppm Gas Phase Raman Spectroscopy in a Single-cladding Ring Anti-resonant Hollow Core Fiber

T.W. Kelly, I.A Davidson, C. Warren, W.S.M. Brooks, M.J. Foster, F. Poletti, D.J. Richardson, P. Horak, and N.V. Wheeler

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Abstract

We show direct detection of both methane and hydrogen at concentrations of 5 and 10ppm respectively using a hollow core fiber-based Raman gas sensor. A record-low noise equivalent limit-of-detection of 0.15ppm is demonstrated for methane.

© 2022 The Author(s)

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Improved Visible-guiding Anti-resonant Hollow-Core Fiber for Gas-phase Raman Spectroscopy

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