Abstract

In this Letter, we present and experimentally validate the first direct hyperspectral dual-comb gas imaging system operating in the mid-infrared region. This method provides an unmatched combination of super-fine spectral characterization and high temporal resolution without the need for thermal contrast between the target molecules and the background. In a proof-of-concept experiment, the system has allowed us to perform precision hyperspectral imaging of butane in the 3.4 µm band with a time resolution of 1 s.

© 2020 Optical Society of America

Direct hyperspectral dual-comb imaging

Pedro Martín-Mateos, Farid Ullah Khan, and Oscar Elías Bonilla-Manrique
Optica 7(3) 199-202 (2020)

Mid-infrared electro-optic dual-comb spectroscopy with feedforward frequency stepping

Xinyi Ren, Hu Dai, Detian Li, Kun Huang, Mengyun Hu, Tianjian Lv, Ming Yan, and Heping Zeng
Opt. Lett. 45(3) 776-779 (2020)

AI-enabled real-time dual-comb molecular fingerprint imaging

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VECSEL-based virtually imaged phased array spectrometer for rapid gas phase detection in the mid-infrared

Robert Rockmore, Ricky Gibson, Jerome V. Moloney, and R. Jason Jones
Opt. Lett. 45(20) 5796-5799 (2020)

Long-wave mid-infrared time-resolved dual-comb spectroscopy of short-lived intermediates

Pei-Ling Luo
Opt. Lett. 45(24) 6791-6794 (2020)