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Opt Lett. 2007 Dec 15;32(24):3558-60.

Amplitude ambiguities in second-harmonic generation frequency-resolved optical gating.

Author information

1
Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. balakishorey@gmail.com

Erratum in

  • Opt Lett. 2008 Dec 1;33(23):2854.

Abstract

We construct field shapes with distinct amplitude profiles that have nearly identical second-harmonic generation frequency-resolved optical gating (SHG FROG) traces. Although such fields are not true mathematical ambiguities, they result in experimentally indistinguishable FROG traces. These fields are neither time-reversed copies nor pulselets with a mere relative phase difference, which are well known nontrivial ambiguities for SHG FROG. We also show that for certain example fields, second-order interferometric autocorrelation is more sensitive to the pulse shape than is SHG FROG.

PMID:
18087541

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