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Journal of Physics: Photonics, 3(3), p. 034020, 2021

DOI: 10.1088/2515-7647/ac0d0e

OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS), 2020

DOI: 10.1364/euvxray.2020.jw1a.18

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Time Domain Spectroscopy of Methane Excited by Resonant High-Energy Mid-IR Pulses

Journal article published in 2020 by G. Crippa ORCID, D. Faccialà ORCID, P. Prasannan Geetha ORCID, P. Prasannan Geetha, A. Pusala ORCID, M. Musheghyan, A. Assion, M. Bonanomi, E. Cinquanta ORCID, A. G. Ciriolo ORCID, M. Devetta ORCID, D. Fazzi ORCID, L. Gatto ORCID, S. De Silvestri ORCID, C. Vozzi ORCID and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Abstract We describe the implementation of nonlinear time-domain spectroscopy of rotovibrational IR-active modes in methane through broadband Four-Wave Mixing driven by resonant high-energy mid infrared laser pulses. At high driving pulse intensities we observe an efficient vibrational ladder climbing triggered in the molecules. This study opens the possibility to impulsively and selectively excite molecules of biological interest to high-lying vibrational states and to characterize their dynamics.