Narrow bandwidth gamma comb from nonlinear Compton scattering using the polarization gating technique
arXiv:2011.12931 · doi:10.1103/PhysRevLett.126.194801
Abstract
Nonlinear Compton scattering is a promising source of bright gamma-rays. Using readily available intense laser pulses to scatter off the energetic electrons on the one hand allows to significantly increase the total photon yield, but on the other hand leads to a dramatic spectral broadening of fundamental emission line as well as its harmonics due to the laser pulse shape induced ponderomotive effects. In this paper we propose to avoid ponderomotive broadening in harmonics by using the polarization gating technique - a well-known method to construct a laser pulse with temporally varying polarization. We show that by restricting harmonic emission only to the region near the peak of the pulse, where the polarization is linear, it is possible to generate a bright narrow bandwidth comb in the gamma region.
References in corpus (10)
- Non-Linear Compton Scattering of Ultrashort and Ultraintense Laser Pulses
- Beam-Shape Effects in Nonlinear Compton and Thomson Scattering
- Spectral Bandwidth Reduction of Thomson Scattered Light by Pulse Chirping
- Quasi-monoenergetic femtosecond photon sources from Thomson Scattering using laser plasma accelerators and plasma channels
- Narrowband inverse Compton scattering x-ray sources at high laser intensities
- Narrowband Emission in Thomson Sources Operating in the High-Field Regime
- Optimizing Laser Pulses for Narrowband Inverse Compton Sources in the High-Intensity Regime
- Temporal laser pulse shape effects in nonlinear Thomson scattering
- Impact of laser polarization on q-exponential photon tails in non-linear Compton scattering
- Combining Harmonic Generation and Laser Chirping to Achieve High Spectral Density in Compton Sources
Cited by in corpus (5)
- Advances in QED with intense background fields
- Impact of laser polarization on q-exponential photon tails in non-linear Compton scattering
- High-brilliance ultra-narrow-band x-rays via electron radiation in colliding laser pulses
- Towards high photon density for Compton Scattering by spectral chirp
- Coherent frequency combs from electrons colliding with a laser pulse