Abstract
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.
| Original language | English |
|---|---|
| Article number | 125011 |
| Number of pages | 13 |
| Journal | New Journal of Physics |
| Volume | 15 |
| DOIs | |
| Publication status | Published - 9 Dec 2013 |
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Keywords
- characterization methods
- difference-frequency generation
- electric field oscillations
- electric-field amplitude
- long wavelength
- measurements
- short optical pulse
- terahertz fields
Cite this
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Spectrally resolved wave-mixing between near- and far-infrared pulses in gas. / Clerici, M; Faccio, D; Caspani, L; Peccianti, M; Yaakobi, O; Schmidt, B E; Shalaby, M; Vidal, F; Légaré, F; Ozaki, T; Morandotti, R.
In: New Journal of Physics, Vol. 15, 125011, 09.12.2013.Research output: Contribution to journal › Article
TY - JOUR
T1 - Spectrally resolved wave-mixing between near- and far-infrared pulses in gas
AU - Clerici, M
AU - Faccio, D
AU - Caspani, L
AU - Peccianti, M
AU - Yaakobi, O
AU - Schmidt, B E
AU - Shalaby, M
AU - Vidal, F
AU - Légaré, F
AU - Ozaki, T
AU - Morandotti, R
PY - 2013/12/9
Y1 - 2013/12/9
N2 - 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.
AB - 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.
KW - characterization methods
KW - difference-frequency generation
KW - electric field oscillations
KW - electric-field amplitude
KW - long wavelength
KW - measurements
KW - short optical pulse
KW - terahertz fields
UR - http://www.scopus.com/inward/record.url?scp=84890481442&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/15/12/125011
DO - 10.1088/1367-2630/15/12/125011
M3 - Article
AN - SCOPUS:84890481442
VL - 15
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 125011
ER -