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Ionization waves of arbitrary velocity driven by a flying focus

Journal Article · · Physical Review A
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2]
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Laboratory for Laser Energetics, University of Rochester
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
A chirped laser pulse focused by a chromatic lens exhibits a dynamic, or flying, focus in which the trajectory of the peak intensity decouples from the group velocity. In a medium, the flying focus can trigger an ionization front that follows this trajectory. By adjusting the chirp, the ionization front can be made to travel at an arbitrary velocity along the optical axis. For this study, we present analytical calculations and simulations describing the propagation of the flying focus pulse, the self-similar form of its intensity profile, and ionization wave formation. The ability to control the speed of the ionization wave and, in conjunction, mitigate plasma refraction has the potential to advance several laser-based applications, including Raman amplification, photon acceleration, high-order-harmonic generation, and THz generation.
Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
New York State Energy Research and Development Authority (NYSERDA); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
NA0001944; SC0016253
OSTI ID:
1432173
Alternate ID(s):
OSTI ID: 1426515
Report Number(s):
1390; 2017--257; 2017-257, 1390, 2348
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 97; ISSN PLRAAN; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Spatiotemporal control of laser intensity journal March 2018
Cascaded chirped photon acceleration for efficient frequency conversion journal May 2018
Stimulated Raman near-backscattering with a pulse-front-tilted pump journal September 2018
Flying focus: Spatial and temporal control of intensity for laser-based applications journal March 2019
Flying focus and its application to plasma-based laser amplifiers journal November 2018
Plasma-based accelerators: then and now journal August 2019
Ionization Waves of Arbitrary Velocity journal May 2018
Photon Acceleration in a Flying Focus journal September 2019
Dephasingless Laser Wakefield Acceleration journal March 2020
Control of laser light by a plasma immersed in a tunable strong magnetic field journal January 2019
Controlling the velocity of a femtosecond laser pulse using refractive lenses journal January 2020
Photon Acceleration in a Flying Focus text January 2019

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