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Normalized transverse profiles of the pump beam at 980 nm (dotted line) and of the induced luminescence at 550 nm (continuous line).
Numerical calculation of the luminescence and of the pump beam intensity during propagation.
Images of the pump beam and luminescence light along propagation in the diffraction and self-trapping regimes.
Images at the output face as a function of the formation time. The beam does not bend thanks to the presence of the background illumination due to the luminescence.
Fitting parameters. The closed marks refer to the fitting parameters along the direction while the open marks refer to the fitting parameters along the direction.
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