Robust signatures of quantum radiation reaction in focused ultrashort laser pulses

Abstract

Radiation reaction effects in the interaction of an electron bunch with a superstrong focused ultrashort laser pulse are investigated in the quantum radiation dominated regime. The angle-resolved Compton scattering spectra are calculated in laser pulses of variable duration using a semi-classical description for the radiation dominated dynamics and a full quantum treatment for the emitted radiation. In dependence of the laser pulse duration we find signatures of quantum radiation reaction in the radiation spectra, which are characteristic for the focused laser beam and visible in the qualitative behaviour of both the angular spread and the spectral bandwidth of the radiation spectra. The signatures are robust with respect to the variation of the electron and laser beam parameters in a large range. They fully differ qualitatively from those in the classical radiation reaction regime and are measurable with presently available laser technology.

References in corpus (8)

• Femtosecond x rays from laser-plasma accelerators
• All-optical Compton gamma-ray source
• Quantum radiation reaction effects in multiphoton Compton scattering
• Quantum radiation reaction in laser-electron beam collisions
• Pair Creation in QED-Strong Pulsed Laser Fields Interacting with Electron Beams
• Strong signatures of radiation reaction below the radiation dominated regime
• Emission and its back-reaction accompanying electron motion in relativistically strong and QED-strong pulsed laser fields
• Nonlinear double Compton scattering in the full quantum regime

Cited by in corpus (6)

• Focussing effects in laser-electron Thomson scattering
• Radiation Reaction near the Classical Limit in Aligned Crystals
• Measuring quantum radiation reaction in laser--electron-beam collisions
• Imprint of the stochastic nature of photon emission by electrons on the proton energy spectra in the laser-plasma interaction
• On-shot diagnostic of electron beam-laser pulse interaction based on stochastic quantum radiation reaction
• Electromagnetic fields of an ultra-short tightly-focused radially-polarized laser pulse