A. Johansson, A. Filipsson, L. Rutkowski, P. Masłowski, A. Foltynowicz
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CO2 Line Parameter Retrieval Beyond the Voigt Profile Using Comb-Based Fourier Transform Spectroscopy
We measure absorption spectra of the CO2 3ν1+ν3 band at 1.57 μm using optical frequency comb Fourier transform spectroscopy with sub-nominal resolution and retrieve line shape parameters using multiline fitting with the speed-dependent Voigt profile.