In situ temporal measurement of ultrashort laser pulses at full power during high-intensity laser–matter interactions
- 11 August 2020
- journal article
- research article
- Published by Optica Publishing Group in Optica
- Vol. 7 (8), 995-1002
- https://doi.org/10.1364/optica.398319
Abstract
In laser-matter interaction experiments, it is of paramount importance to characterize the laser pulse on target (in situ) and at full power. This allows pulse optimization and meaningful comparison with theory, and it can shed fundamental new light on pulse distortions occurring in or on the target. Here we introduce and demonstrate a new technique based on dispersion-scan using the concurrent third harmonic emission from the target that permits the full (amplitude and phase), in situ, in-parallel characterization of ultrashort laser pulses in a gas or solid target over a very wide intensity range encompassing the 10(13)-10(15) W cm(-2) regime of high harmonic generation and other important strong-field phenomena, with possible extension to relativistic intensities presently inaccessible to other diagnostics p . Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. https://doi.org/10.1364/OPTICA.398319Keywords
Funding Information
- Engineering and Physical Sciences Research Council (EP/I032517/1)
- Defence Science and Technology Laboratory (EP/N018680/1)
- Fundação para a Ciência e a Tecnologia (M-ERA-NET2/0002/2016, PTDC/FIS-OTI/32213/2017, UIDB/04968/2020)
- Programa Operacional Temático Factores de Competitividade (NORTE-01-0145-FEDER-022096)
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