%0 Generic %1 Chwedenczuk2008 %A Chwedenczuk, Jan %A Wasilewski, Wojciech %D 2008 %K downconversion imported optics %T Intensity of parametric fluorescence pumped by ultrashort pulses %U http://arxiv.org/abs/0804.3245 %X We investigate intensity of the parametric down conversion of ultrashort, ultraviolet pulse both in a low- and high-conversion regime. In the first regime, we develop a simple analytical expressions for the photon flux of the fluorescence. Numerical simulations using three-dimensional stochastic Wigner method provide results in the latter regime. We find that the perturbative approximation for the photon flux as a function of the wavelength of the signal and the observation angle, quantitatively describes even the non-perturbative regime. For short pump pulses the intensity of the fluorescence is highest at frequencies where the group velocities of the pump and the down-conversion are equal. For longer pump pulses this requirement is gradually relaxed. Additionally, for small pump beams, the intensity strongly depends on the spatial divergence between interacting fields.

@misc{Chwedenczuk2008, abstract = { We investigate intensity of the parametric down conversion of ultrashort, ultraviolet pulse both in a low- and high-conversion regime. In the first regime, we develop a simple analytical expressions for the photon flux of the fluorescence. Numerical simulations using three-dimensional stochastic Wigner method provide results in the latter regime. We find that the perturbative approximation for the photon flux as a function of the wavelength of the signal and the observation angle, quantitatively describes even the non-perturbative regime. For short pump pulses the intensity of the fluorescence is highest at frequencies where the group velocities of the pump and the down-conversion are equal. For longer pump pulses this requirement is gradually relaxed. Additionally, for small pump beams, the intensity strongly depends on the spatial divergence between interacting fields. }, added-at = {2009-07-24T13:16:07.000+0200}, author = {Chwedenczuk, Jan and Wasilewski, Wojciech}, biburl = {https://www.bibsonomy.org/bibtex/2e7be218b941ecfc28e6015278b90b09c/stared}, description = {Intensity of parametric fluorescence pumped by ultrashort pulses}, interhash = {e5815c5508b67bbf88970a77f85ecf57}, intrahash = {e7be218b941ecfc28e6015278b90b09c}, keywords = {downconversion imported optics}, note = {cite arxiv:0804.3245 }, timestamp = {2009-07-24T13:16:08.000+0200}, title = {Intensity of parametric fluorescence pumped by ultrashort pulses}, url = {http://arxiv.org/abs/0804.3245}, year = 2008 }