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Contrast improvement of sub-4 fs laser pulses using nonlinear elliptical polarization rotation
Umeå University, Faculty of Science and Technology, Department of Physics.ORCID iD: 0000-0002-4884-3336
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
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2019 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 44, no 16, p. 4028-4031Article in journal (Refereed) Published
Abstract [en]

Temporal-intensity contrast is crucial in intense laser-matter interaction to circumvent the undesirable expansion of steep high-density plasma prior to the interaction with the main pulse. Nonlinear elliptical polarization rotation in an argon filled hollow-core fiber is used here for cleaning pedestals/satellite pulses of a chirped-pulse-amplifier based Ti: Sapphire laser. This source provides similar to 35 mu J energy and sub-4-fs duration, and the process has >50% internal efficiency, more than the most commonly used pulse cleaning methods. Further, the contrast is improved by 3 orders of magnitude when measured after amplifying the pulses to 16 TW using non-collinear optical parametric chirped pulse amplification with a prospect to even further enhancement.

Place, publisher, year, edition, pages
Optical Society of America, 2019. Vol. 44, no 16, p. 4028-4031
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-162848DOI: 10.1364/OL.44.004028ISI: 000481541400031PubMedID: 31415539OAI: oai:DiVA.org:umu-162848DiVA, id: diva2:1349370
Available from: 2019-09-09 Created: 2019-09-09 Last updated: 2019-09-09Bibliographically approved

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Fischer, PeterMuschet, AlexanderSalh, RoushdeyVeisz, Laszlo

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Smijesh, N.Fischer, PeterMuschet, AlexanderSalh, RoushdeyVeisz, Laszlo
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