Single-shot frequency-resolved optical gating for retrieving the pulse shape of high energy picosecond pulses.
Rev Sci Instrum
; 89(10): 103509, 2018 Oct.
Article
em En
| MEDLINE
| ID: mdl-30399934
ABSTRACT
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.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2018
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Article