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Title: Laser pulse sharpening with electromagnetically induced transparency in plasma

We propose a laser-controlled plasma shutter technique to generate sharp laser pulses using a process analogous to electromagnetically induced transparency in atoms. The shutter is controlled by a laser with moderately strong intensity, which induces a transparency window below the cutoff frequency, and hence enables propagation of a low frequency laser pulse. Numerical simulations demonstrate that it is possible to generate a sharp pulse wavefront (sub-ps) using two broad pulses in high density plasma. The technique can work in a regime that is not accessible by plasma mirrors when the pulse pedestals are stronger than the ionization intensity.
Authors:
ORCiD logo [1] ; ORCiD logo [1]
  1. Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences
Publication Date:
Grant/Contract Number:
NA0002948; FA9550-15-1-0391
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 7; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Princeton Univ., NJ (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); US Air Force Office of Scientific Research (AFOSR)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1474304

Qu, Kenan, and Fisch, Nathaniel J. Laser pulse sharpening with electromagnetically induced transparency in plasma. United States: N. p., Web. doi:10.1063/1.4990440.
Qu, Kenan, & Fisch, Nathaniel J. Laser pulse sharpening with electromagnetically induced transparency in plasma. United States. doi:10.1063/1.4990440.
Qu, Kenan, and Fisch, Nathaniel J. 2017. "Laser pulse sharpening with electromagnetically induced transparency in plasma". United States. doi:10.1063/1.4990440. https://www.osti.gov/servlets/purl/1474304.
@article{osti_1474304,
title = {Laser pulse sharpening with electromagnetically induced transparency in plasma},
author = {Qu, Kenan and Fisch, Nathaniel J.},
abstractNote = {We propose a laser-controlled plasma shutter technique to generate sharp laser pulses using a process analogous to electromagnetically induced transparency in atoms. The shutter is controlled by a laser with moderately strong intensity, which induces a transparency window below the cutoff frequency, and hence enables propagation of a low frequency laser pulse. Numerical simulations demonstrate that it is possible to generate a sharp pulse wavefront (sub-ps) using two broad pulses in high density plasma. The technique can work in a regime that is not accessible by plasma mirrors when the pulse pedestals are stronger than the ionization intensity.},
doi = {10.1063/1.4990440},
journal = {Physics of Plasmas},
number = 7,
volume = 24,
place = {United States},
year = {2017},
month = {7}
}