Dual-energy electron beams from a compact laser-driven accelerator

Abstract

Ultrafast pump-probe experiments open the possibility to track fundamental material behaviour like changes in its electronic configuration in real time. To date, most of these experiments are performed using an electron or a high-energy photon beam, which is synchronized to an infrared laser pulse. Entirely new opportunities can be explored if not only a single, but multiple synchronized, ultra-short, high-energy beams are used. However, this requires advanced radiation sources that are capable of producing dual-energy electron beams, for example. Here, we demonstrate simultaneous generation of twin-electron beams from a single compact laser wakefield accelerator. The energy of each beam can be individually adjusted over a wide range and our analysis shows that the bunch lengths and their delay inherently amount to femtoseconds. Our proof-of-concept results demonstrate an elegant way to perform multi-beam experiments in future on a laboratory scale.

References in corpus (15)

• Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
• Femtosecond x rays from laser-plasma accelerators
• All-optical Compton gamma-ray source
• Beam by design: laser manipulation of electrons in modern accelerators
• Single shot phase contrast imaging using laser-produced Betatron x-ray beams
• Observation of longitudinal and transverse self-injections in laser-plasma accelerators
• Observation of beam loading in a laser-plasma accelerator
• Multi-chromatic narrow-energy-spread electron bunches from laser wakefield acceleration with dual-color lasers
• Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator
• Minimum Decision Cost for Quantum Ensembles
• Energy-chirp compensation in laser wakefield accelerators
• Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
• Research towards high-repetition rate laser-driven X-ray sources for imaging applications
• A spectral unaveraged algorithm for free electron laser simulations
• High-quality GeV-scale electron bunches with the Resonant Multi-Pulse Ionization Injection

Cited by in corpus (10)

• Physics of nanocoulomb-class electron beams in laser-plasma wakefields
• Demonstration of a compact plasma accelerator powered by laser-accelerated electron beams
• Stable and high quality electron beams from staged laser and plasma wakefield accelerators
• Nonlinear plasma wavelength scalings in a laser wakefield accelerator
• Optical Shaping of Plasma Cavity for Controlled Laser Wakefield Acceleration
• Generation of ultrafast electron bunch trains via trapping into multiple periods of plasma wakefields
• Generation of topologically complex three-dimensional electron beams in a plasma photocathode
• A Platform for All-optical Thomson/ Compton Scattering with Versatile Parameters
• Control of transverse motion and X-ray emission of electrons accelerated in laser-driven wakefields by tuning laser spatial chirp
• Charge transport and mode transition in dual-energy electron beam diodes