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Interaction of an intense few-cycle infrared laser pulse with an ultrathin transparent liquid sheet

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Title: Interaction of an intense few-cycle infrared laser pulse with an ultrathin transparent liquid sheet
Authors: Ferchaud, C
Jarosch, S
Avni, T
Alexander, O
Barnard, J
Larsen, E
Matthews, M
Marangos, J
Item Type: Journal Article
Abstract: We experimentally study the interaction between intense infrared few-cycle laser pulses and an ultrathin (∼2 µm) flat liquid sheet of isopropanol running in vacuum. We observe a rapid decline in transmission above a critical peak intensity of 50 TW/cm2 of the initially transparent liquid sheet, and the emission of a plume of material. We find both events are due to the creation of a surface plasma and are similar to processes observed in dielectric solids. After calculating the electron density for different laser peak intensities, we find an electron scattering rate of 0.3 fs-1 in liquid isopropanol to be consistent with our data. We study the dynamics of the plasma plume to find the expansion velocity of the plume front.
Issue Date: 12-Sep-2022
Date of Acceptance: 25-Jun-2022
URI: http://hdl.handle.net/10044/1/98173
DOI: 10.1364/oe.457470
ISSN: 1094-4087
Publisher: Optical Society of America (OSA)
Start Page: 34684
End Page: 34692
Journal / Book Title: Optics Express
Volume: 30
Issue: 19
Copyright Statement: © 2022 The Author(s). Published by Optica Publishing Group 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.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering and Physical Sciences Research Council
Funder's Grant Number: EP/N018680/1
Keywords: 0205 Optical Physics
0906 Electrical and Electronic Engineering
1005 Communications Technologies
Publication Status: Published
Online Publication Date: 2022-06-27
Appears in Collections:Quantum Optics and Laser Science
Faculty of Natural Sciences

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