Spectrally resolved wave-mixing between near- and far-infrared pulses in gas

Clerici, M, Faccio, D, Caspani, L, Peccianti, M, Yaakobi, O, Schmidt, B, Shalaby, M, Vidal, F, Légaré, F, Ozaki, T and Morandotti, R (2013) Spectrally resolved wave-mixing between near- and far-infrared pulses in gas. New Journal of Physics, 15 (125011). pp. 1-13. ISSN 1367-2630

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We investigate the nonlinear wave-mixing in gases between intense, short optical pulses and long-wavelength fields (mid infrared and terahertz). We show numerically that the beating between the sum- and difference-frequency generation components can be isolated in the spectrogram of the interaction, and can be used to sample the electric field oscillations of the long-wavelength pulses. This, in turn, could be employed as a possible characterization method that provides information on the real electric field amplitude. Our numerical model is supported by spectrally resolved measurements of the four-wave mixing signals obtained from the interaction of intense, single-cycle terahertz fields (λ > 15 μm) and optical pulses (λ ≃ 800 nm, 50 fs duration) in air. © IOP Publishing and Deutsche Physikalische Gesellschaft.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics > QC0350 Optics. Light
Q Science > QC Physics > QC0501 Electricity and magnetism > QC0522 Electricity > QC0717.6 Plasma physics. Ionized gases
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
Depositing User: Marco Peccianti
Date Deposited: 27 May 2014 08:05
Last Modified: 11 Nov 2019 10:56
URI: http://sro.sussex.ac.uk/id/eprint/47534

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