32 citations · 108 across the 22 of their papers we have counts for
7 papers · 1 filter
Longitudinal instabilities affecting the moving critical layer laser-plasma ion accelerators
Aakash Ajit Sahai, Thomas C. Katsouleas
In this work we analyze the longitudinal instabilities of propagating acceleration structures that are driven by a relativistically intense laser at the moving plasma critical laye…
Self-injection by trapping of plasma electrons oscillating in rising density gradient at the vacuum-plasma interface
Aakash A. Sahai, Thomas C. Katsouleas, Patric Muggli
We model the trapping of plasma within the density structures excited by a propagating energy source () in a rising plasma density gradient. Rising density grad…
Refraction of beams due to plasma lensing at a plasma-vacuum interface -- applied to beam deflection in a Copper cell with electrical RF-breakdown plasma
Aakash A. Sahai, T. C. Katsouleas
We formulate a possible description of the deflection of a relativistic beam in an inhomogeneous copper plasma, encountered by the beam when propagating through a acceleratin…
Proton acceleration by a relativistic laser frequency-chirp driven plasma snowplow
Aakash A. Sahai, T. C. Katsouleas, R. A. Bingham +4
We analyze the use of a relativistic laser pulse with a controlled frequency chirp incident on a rising plasma density gradient to drive an acceleration structure for proton and li…
Long Term Evolution of Plasma Wakefields
Aakash A. Sahai, T. C. Katsouleas, F. S. Tsung +1
We study the long-term evolution (LTE) of plasma wakefields over multiple plasma-electron periods and few plasma-ion periods, much less than a recombination time. The evolution and…
Motion of the Plasma Critical Layer During Relativistic-electron Laser Interaction with Immobile and Comoving Ion Plasma for Ion Acceleration
Aakash A. Sahai
We analyze the motion of the plasma critical layer by two different processes in the relativistic-electron laser-plasma interaction regime (). The differences are highlighte…
Relativistically Induced Transparency Acceleration (RITA) of Protons and Light-ions with Ultrashort Laser Interaction with Heavy-ion Plasma Density Gradient
Aakash A. Sahai, F. S. Tsung, A. R. Tableman +2
The relativistically induced transparency acceleration (RITA) scheme of proton and ion acceleration using laser-plasma interactions is introduced, modeled, and compared to the exis…