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Proceedings Paper

Noncollinear autocorrelation with radially symmetric nondiffracting beams
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Paper Abstract

Fringe-resolved noncollinear autocorrelation extracts information about the pulse duration of ultrashort optical signals from analyzing the intensity envelope of fringes. By detecting nonlinear autocorrelation functions after frequency conversion, even an evaluation of temporal asymmetry and frequency chirp are enabled. Here we report on a modified approach based on replacing crossed plane waves by Bessel-like beams. In comparison to the conventional method, appropriate mathematical transforms have to be applied. The method is simple and single-shot capable and takes advantage of specific advantages of pseudo-nondiffracting beams. First proof-of-principle experiments with few-femtosecond pulse durations were performed and compared to simulations. In multishot operation regime, the implementation of phase-shifting procedures by spatial light modulators promises considerable improvements of the time resolution analogous to the known principle of phase-shift interferometry.

Paper Details

Date Published: 11 August 2008
PDF: 12 pages
Proc. SPIE 7063, Interferometry XIV: Techniques and Analysis, 706311 (11 August 2008); doi: 10.1117/12.792731
Show Author Affiliations
Silke Huferath-von Luepke, Bremen Institute of Applied Beam Technology (Germany)
Volker Kebbel, bwm GmbH (Germany)
Martin Bock, Max-Born-Institute for Nonlinear Optics and Short-Pulse Spectroscopy (Germany)
Susanta Kumar Das, Max-Born-Institute for Nonlinear Optics and Short-Pulse Spectroscopy (Germany)
Ruediger Grunwald, Max-Born-Institute for Nonlinear Optics and Short-Pulse Spectroscopy (Germany)


Published in SPIE Proceedings Vol. 7063:
Interferometry XIV: Techniques and Analysis
Joanna Schmit; Katherine Creath; Catherine E. Towers, Editor(s)

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