Single-shot frequency-resolved optical gating for retrieving the pulse shape of high energy picosecond pulses

Accurate characterization of laser pulses used in experiments is a crucial step to the analysis of their results. In this paper, a novel single-shot frequency-resolved optical gating (FROG) device is described, one that incorporates a dispersive element which allows it to fully characterize pulses u...

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Published inReview of scientific instruments Vol. 89; no. 10; p. 103509
Main Authors Aboushelbaya, R, Savin, A F, Ceurvorst, L, Sadler, J, Norreys, P A, Davies, A S, Froula, D H, Boyle, A, Galimberti, M, Oliveira, P, Parry, B, Katzir, Y, Glize, K
Format Journal Article
LanguageEnglish
Published United States 01.10.2018
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Summary:Accurate characterization of laser pulses used in experiments is a crucial step to the analysis of their results. In this paper, a novel single-shot frequency-resolved optical gating (FROG) device is described, one that incorporates a dispersive element which allows it to fully characterize pulses up to 25 ps in duration with a 65 fs per pixel temporal resolution. A newly developed phase retrieval routine based on memetic algorithms is implemented and shown to circumvent the stagnation problem that often occurs with traditional FROG analysis programs when they encounter a local minimum.
ISSN:1089-7623
DOI:10.1063/1.5044526