12 September 2014 CO2 phase and amplitude spectra measured over 2 km outdoor path with a dual-comb spectrometer
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Abstract
We present dispersive dual-comb spectroscopy of atmospheric CO2 across a 2-km open-air path. By sending a single comb through the open-air path, both molecular phase spectrum and conventional absorbance spectrum are obtained. The measured phase spectra match expected molecular lineshape models.
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I. Coddington, I. Coddington, F. R. Giorgetta, F. R. Giorgetta, G. B. Rieker, G. B. Rieker, W. C. Swann, W. C. Swann, A. M. Zolot, A. M. Zolot, L. C. Sinclair, L. C. Sinclair, E. Baumann, E. Baumann, C. Cromer, C. Cromer, N. R. Newbury, N. R. Newbury, "CO2 phase and amplitude spectra measured over 2 km outdoor path with a dual-comb spectrometer", Proc. SPIE 9219, Infrared Remote Sensing and Instrumentation XXII, 921907 (12 September 2014); doi: 10.1117/12.2061931; https://doi.org/10.1117/12.2061931
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