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Conferences > OFS > 2022 > Th1 > Th1.5

Precision Measurement of Carbon Dioxide Isotope Ratio and Ammonia based on Photo-thermal Spectroscopy in a Hollow-Core Fiber

Shoulin Jiang, Feifan Chen, Shoufei Gao, Yingying Wang, Hoi Lut Ho, and Wei Jin

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Abstract

We demonstrate a hollow-core fiber photo-thermal gas sensor at 2 μm which is capable of detection carbon dioxide isotope ratio with precision of 0.38‰ and ammonia with detection limit of 4.6 ppb.

© 2022 The Author(s)

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