Dispersion scan frequency resolved optical gating for consistency check of pulse retrieval

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F24%3A00604638" target="_blank" >RIV/61389021:_____/24:00604638 - isvavai.cz</a>
Result on the web
<a href="https://pubs.aip.org/aip/rsi/article/95/4/043002/3280564/Dispersion-scan-frequency-resolved-optical-gating" target="_blank" >https://pubs.aip.org/aip/rsi/article/95/4/043002/3280564/Dispersion-scan-frequency-resolved-optical-gating</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0179560" target="_blank" >10.1063/5.0179560</a>

Result language
angličtina
Original language name
Dispersion scan frequency resolved optical gating for consistency check of pulse retrieval
Original language description
Many methods commonly used to characterize ultrafast laser pulses, such as the frequency-resolved optical gating (FROG) or the dispersion scan (d-scan), face problems when they are used on pulses with a spectrum or phase varying within the laser beam cross section or the acquisition time. The presence of such pulse shape variation leads to discrepancy between the measured FROG trace and its reconstructed counterparts. Nevertheless, it is difficult to reliably discern this shape variation because even the distorted experimental FROG trace can be reasonably reproduced by a realistic pulse shape. In this work, we examine and discern the variation of the pulse shape based on a new method, dispersion-scan FROG (D-FROG), which combines the idea of dispersion scanning with the FROG method. This technique provides a means of careful evaluation of the laser pulse based on a set of FROG traces connected by known dispersion changes. Therefore, this method can disclose seemingly correct pulse retrievals from distorted datasets. The D-FROG method can be used as a simple extension of the FROG technique to provide a consistency check able to identify the shortcomings in the pulse characterization.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20302 - Applied mechanics

Project
<a href="/en/project/GA23-08020S" target="_blank" >GA23-08020S: Tomography of thin-film interfaces by using random-pulse picosecond sonar</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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