Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session JO8: Radiation from Plasmas and Laser-plasma Accelerators
2:00 PM–5:00 PM,
Tuesday, November 6, 2018
OCC
Room: C120-122
Chair: Douglass Schumacher, Ohio State University
Abstract ID: BAPS.2018.DPP.JO8.15
Abstract: JO8.00015 : Photon Acceleration in the Ionization Front of a Flying Focus*
4:48 PM–5:00 PM
Presenter:
Andrew Howard
(University of Rochester Laboratory for Laser Energetics)
Authors:
Andrew Howard
(University of Rochester Laboratory for Laser Energetics)
David Turnbull
(University of Rochester Laboratory for Laser Energetics)
Andrew Davies
(University of Rochester Laboratory for Laser Energetics)
Dustin H. Froula
(University of Rochester Laboratory for Laser Energetics)
John Palastro
(University of Rochester Laboratory for Laser Energetics)
A high-intensity laser pulse propagating through a medium triggers an ionization front that can frequency upshift and accelerate the photons of a secondary pulse. Dramatic frequency shifts, for instance from the optical to extreme UV, require that the photons remain in the ionization front over an extended distance. Traditionally, however, several effects have limited the interaction distance: the accelerated photons quickly outpace the ionization front, and the ionizing pulse diffracts or refracts from the plasma. The “flying focus”—a moving focal point resulting from a chirped laser pulse focused by a chromatic lens—overcomes these limitations. A flying focus pulse can drive a counter-propagating ionization front that travels at the speed of light in vacuum over a distance much greater than the Rayleigh range. Here we present photon kinetics simulations demonstrating photon acceleration in such a front.
*This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0001944 and the U.S. Department of Energy Office of Fusion Energy Sciences under contract no. DE-SC0016253.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.JO8.15
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700