Physics of Plasmas, Volume 28, Issue 5, May 2021. Electrons at the surface of a plasma that is irradiated by a laser with intensity in excess of [math] are accelerated so strongly that they emit bursts of synchrotron radiation. Although the combination of high photon and electron density and electromagnetic field strength at the plasma surface makes particle–particle interactions possible, these interactions are usually neglected in simulations of the high-intensity regime. Here we demonstrate an implementation of two such processes: photon absorption and stimulated emission. We show that, for plasmas that are opaque to the laser light, photon absorption would cause complete depletion of the multi-keV region of the synchrotron photon spectrum, unless compensated by stimulated emission. Our results motivate further study of the density dependence of quantum electrodynamics phenomena in strong electromagnetic fields.

## Authors

## Departments

## Libraries

## Recent Articles

- Modeling of dusty gas flows due to plume impingement on a lunar surface
- Robust and unstable axisymmetric vortices, including neutral vortices, of a new two-dimensional vortex family
- Origins of nanoscale emission inhomogeneities of high content red emitting InGaN/InGaN quantum wells
- Schottky barrier heights of defect-free metal/ZnO, CdO, MgO, and SrO interfaces
- Broadband angular color stability of dielectric thin film-coated pyramidal textured Si for photovoltaics
- Functionalization of graphene by boronic acid-based organic molecules
- Fusion yield of plasma with velocity-space anisotropy at constant energy
- Self-absorption of synchrotron radiation in a laser-irradiated plasma
- Observation of fully detached divertor integrated with improved core confinement for tokamak fusion plasmas
- Erratum: “Thermal performance of GaInSb quantum well lasers for silicon photonics applications” [Appl. Phys. Lett. 118, 101105 (2021)]
- Phonon-mediated crystal detectors with metallic film coating capable of rejecting α and β events induced by surface radioactivity
- In-plane anisotropic Raman response of layered In2Te5 semiconductor
- A large and anisotropic enhancement of the mechanical quality factor in ternary relaxor-PbTiO3 single crystals
- Time evolution of vortex rings with large radius and very concentrated vorticity
- Exact solutions of Klein–Gordon equations in external electromagnetic fields on 3D de Sitter background
- Double field theory algebroid and curved L∞-algebras
- Some Neumann-Bessel series and the Laplacian on polygons
- Frontiers of stochastic electronic structure calculations
- Ab initio random structure searching for battery cathode materials
- Direct comparison of amplitude and geometric measures of spectral inhomogeneity using phase-cycled 2D-IR spectroscopy