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arXiv · 1308.2366

Space-time coupling in the up-conversion of broadband down-converted light

E. Brambilla·O. Jedrkiewicz·P. Di Trapani·A. Gatti
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Abstract

We investigate the up-conversion process of broadband light from parametric down-conversion (PDC), focusing on the spatio-temporal spectral properties of the sum-frequency generated (SFG) radiation. We demonstrate that the incoherent component of the SFG spectrum is characterized by a skewed cigar-shaped geometry in space-time due to the compensation of spatial walk-off and group-velocity mismatch between the fundamental and the generated SFG fields. The results are illustrated both by a theoretical modeling of the optical system and by experimental measurements.

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E. Brambilla, O. Jedrkiewicz, P. Di Trapani, A. Gatti. 2013-08-11. Space-time coupling in the up-conversion of broadband down-converted light. https://arxiv.org/abs/1308.2366

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