Non-iterative characterization of few-cycle laser pulses using flat-top gates | Zendy

Romedi Selm | Zendy; Günther Krauss | Zendy; Alfred Leitenstorfer | Zendy; Andreas Zumbusch | Zendy

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Non-iterative characterization of few-cycle laser pulses using flat-top gates

Author(s) -

Romedi Selm,

Günther Krauss,

Alfred Leitenstorfer,

Andreas Zumbusch

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.005955

Subject(s) - optics , narrowband , laser , materials science , microscope , supercontinuum , four wave mixing , self phase modulation , pulse shaping , nonlinear optics , wavelength , physics , photonic crystal fiber

We demonstrate a method for broadband laser pulse characterization based on a spectrally resolved cross-correlation with a narrowband flat-top gate pulse. Excellent phase-matching by collinear excitation in a microscope focus is exploited by degenerate four-wave mixing in a microscope slide. Direct group delay extraction of an octave spanning spectrum which is generated in a highly nonlinear fiber allows for spectral phase retrieval. The validity of the technique is supported by the comparison with an independent second-harmonic fringe-resolved autocorrelation measurement for an 11 fs laser pulse.

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