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Article Dans Une Revue Physical Review Letters Année : 2013

Spectral analog of the Gouy phase shift

Résumé

We demonstrate the existence of the spectral phase shift a pulse experiences when it is subjected to spectral focusing. This π2 phase shift is the spectral analog of the Gouy phase shift a 2D beam experiences when it crosses its focal plane. This spectral Gouy phase shift is measured using spectral interference between a reference pulse and a negatively chirped parabolic pulse experiencing spectral focusing in a nonlinear photonic crystal fiber. To avoid inherent phase instability in the measurement, both reference and parabolic pulses are generated with a 4−f pulse shaper and copropagate in the same fiber. We measure a spectral phase shift of π2, reaffirming its generality as a consequence of wave confinement in the spatial, temporal and spectral domains.
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Dates et versions

hal-00811545 , version 1 (10-04-2013)

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Esben Ravn Andresen, Christophe Finot, D. Oron, Herve Rigneault. Spectral analog of the Gouy phase shift. Physical Review Letters, 2013, 110, pp.143902. ⟨10.1103/PhysRevLett.110.143902⟩. ⟨hal-00811545⟩
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