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arXiv · 1310.6829

Intense sub-2 cycle infrared pulse generation via phase mismatched cascaded nonlinear interaction in DAST crystal

A. Trisorio·M. Divall·C. P. Hauri
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Abstract

Octave-spanning, 12.5 fs, (1.9 cycle) pulses with 115 μJ energy in the short-wavelength mid-infrared spectral range (1-2.5 μm) have been generated via phase-mismatched cascaded nonlinear frequency conversion using organic DAST crystal. Such ultra-fast cascading effect is ensured by the interaction of a pump pulse with the exceptionally large effective nonlinearity of the DAST crystal and experiencing non-resonant, strongly phase mismatched, Kerr-like negative nonlinearity.

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A. Trisorio, M. Divall, C. P. Hauri. 2013-10-25. Intense sub-2 cycle infrared pulse generation via phase mismatched cascaded nonlinear interaction in DAST crystal. https://doi.org/10.1364/ol.39.002660

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