Focusability of laser pulses at petawatt transport intensities in thin-film compression

D. M. Farinella, J. Wheeler, A. E. Hussein, J. Nees, M. Stanfield, N. Beier, Y. Ma, G. Cojocaru, R. Ungureanu, M. Pittman, J. Demailly, E. Baynard, R. Fabbri, M. Masruri, R. Secareanu, A. Naziru, R. Dabu, A. Maksimchuk, K. Krushelnick, D. RosG. Mourou, T. Tajima, F. Dollar

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


Thin-film compression (TFC) and the focusability of high-power laser pulses after self-phase modulation in thin films at transport intensities (∼1 TW∕cm 2 ) for petawatt laser systems is demonstrated. High-energy (∼296 mJ) laser pulses are compressed from ∼55 fs to ∼31 fs. Additionally, the focusability of high-power (∼45–55 TW) flat-top laser pulses after spectral broadening in thin films is found to be largely maintained, showing only modest decreases in the energy contained in the central part of the focal spot. In light of these findings, TFC offers a method for moving toward single-cycle pulse durations at significantly higher energies than those found at present, and if beam instabilities can be mitigated, maybe even higher intensities.

Original languageEnglish (US)
Pages (from-to)A28-A32
JournalJournal of the Optical Society of America B: Optical Physics
Issue number2
StatePublished - Feb 2019

Bibliographical note

Funding Information:
National Science Foundation (NSF) STROBE (DMR 1548924); Norman Rostoker Fund; Alfred P. Sloan Foundation; Extreme Light Infrastructure - Nuclear Physics (ELI-NP) - Phase II; Laserlab-Europe (EU-H2020 654148); European Regional Development Fund (ERDF) through the Competitiveness Operational Programme “Investing in Sustainable Development” (1/07.07.2016, COP ID 1334).

Publisher Copyright:
© 2018 Optical Society of America.


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