We give direct experimental evidence that the group velocity of ultrashort pulses can be controlled through 2-cascaded interactions, under the condition of large group-velocity mismatch. The group velocity can be finely tuned by acting on pulse intensity and phase mismatch. Group-delay shifts up to 50 fs are achieved by propagating 40 fs pulses around 1400 nm in a 25 mm long periodically poled stoichiometric lithium tantalate crystal.

Group-velocity control by quadratic nonlinear interactions

BARONIO, Fabio;DE ANGELIS, Costantino;
2006-01-01

Abstract

We give direct experimental evidence that the group velocity of ultrashort pulses can be controlled through 2-cascaded interactions, under the condition of large group-velocity mismatch. The group velocity can be finely tuned by acting on pulse intensity and phase mismatch. Group-delay shifts up to 50 fs are achieved by propagating 40 fs pulses around 1400 nm in a 25 mm long periodically poled stoichiometric lithium tantalate crystal.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/29264
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