Photon emission by bremsstrahlung and nonlinear Compton scattering in the interaction of ultraintense laser and plasmas

Abstract

By implementing the bremsstrahlung with Monte Carlo algorithm into the particle-in-cell code, the bremsstrahlung and nonlinear Compton scattering can be studied simultaneously in comparison way in the laser plasma interactions. The simulations are performed for the laser of different intensities interacting with either low-$Z$ or high-$Z$ target. The relative strength of the two photon emission from bremsstrahlung and nonlinear Compton scattering are compared. The result shows that when an ultrastrong intensity laser interacting with a thin and relative high $Z$ target the nonlinear Compton scattering is dominant, however, when the laser intensity $I<10^{22}W/c{\mathrm{m}}^2$, the photon emission contributed by bremsstrahlung is comparable to that from nonlinear Compton scattering. In this case the usual ignorable of bremsstrahlung need to be reconsidered.

15 pages, 7 figures

References in corpus (8)

• Nonlinear collective effects in photon-photon and photon-plasma interactions
• Prolific pair production with high-power lasers
• Pair production in counter-propagating laser beams
• Non-Linear Compton Scattering of Ultrashort and Ultraintense Laser Pulses
• Quantum radiation reaction in laser-electron beam collisions
• Laser absorption via QED cascades in counter propagating laser pulses
• The effect of non-linear quantum electrodynamics on relativistic transparency and laser absorption in ultra-relativistic plasmas
• Enhancing Bremsstrahlung Production From Ultraintense Laser-Solid Interactions With Front Surface Structures

Cited by in corpus (3)

• Synchrotron radiation from ultrahigh-intensity laser-plasma interactions and competition with Bremsstrahlung in thin foil targets
• Creating QED Photon Jets with Present-Day Lasers
• Highly efficient conversion of laser energy to hard X-rays in high intensity laser-solid simulations