Generation of quasi-monoenergetic positron beams in chirped laser fields

Abstract

High energy photons can decay to electron-positron pairs via the nonlinear Breit-Wheeler process when colliding with an intense laser pulse. The energy spectrum of the produced particles is broadened because of the variation of their effective mass in the course of the laser pulse. Applying a suitable chirp to the laser pulse can narrow the energy distribution of the generated electrons and positrons. We present a scenario where a high-energy electron beam is collided with a chirped laser pulse to generate a beam of quasi-monoenergetic $\gamma$-photons, which then decay in a second chirped, UV pulse to produce a quasi-monoenergetic source of high-energy electrons and positrons.

References in corpus (9)

• Nonlinear Compton scattering in ultra-short laser pulses
• Non-Linear Compton Scattering of Ultrashort and Ultraintense Laser Pulses
• Compton Process in Intense Short Laser Pulses
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• Loops and polarization in strong-field QED
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• Coherent quantum enhancement of pair production in the null domain

Cited by in corpus (5)

• Advances in QED with intense background fields
• From local to nonlocal: higher fidelity simulations of photon emission in intense laser pulses
• Fully polarized nonlinear Breit-Wheeler pair production in pulsed plane waves
• Pulse envelope effects in nonlinear Breit-Wheeler pair-creation
• Optimal photon polarization toward the observation of the nonlinear Breit-Wheeler pair production