6533b85efe1ef96bd12bf4c8

RESEARCH PRODUCT

Two-Color Radiation Generated in a Seeded Free-Electron Laser with Two Electron Beams.

Enrica ChiadroniM. CarpaneseM. ArtioliMassimo FerrarioD. Di GiovenaleA. PetraliaFabio VillaMarco BellavegliaE. Di PalmaLuca InnocentiAndrea RossiMaria Pia AnaniaConcetta RonsivalleF. CiocciGiuseppe DattoliJulietta V. RauRiccardo PompiliCristina VaccarezzaVladimir ShpakovAndrea MostacciAlberto BacciLuca GiannessiAlessandro CianchiG. Di PirroElio SabiaVittoria Petrillo

subject

General Physics and AstronomyColorElectronsElectronseeding FELRadiation01 natural scienceslaw.inventionPhysics and Astronomy (all)OpticsColor Computer Simulation Image Processing Computer-Assisted Spectrum Analysis Electrons LaserslawFrequency separation0103 physical sciencesElectron beams; free electron lasers; physicsImage Processing Computer-AssistedSpontaneous emissionComputer Simulation010306 general physicsPhysicsFEL010308 nuclear & particles physicsbusiness.industryLasersSpectrum AnalysisSettore FIS/01 - Fisica SperimentaleFree-electron laserElectron beamsSPARCLaserFEL seeding FEL lasersFree Electron Laserfree electron lasersCathode raybusinessSeeded FELphysicsCoherence (physics)

description

We present the experimental evidence of the generation of coherent and statistically stable two-color free-electron laser radiation obtained by seeding an electron beam double peaked in energy with a laser pulse single spiked in frequency. The radiation presents two neat spectral lines, with time delay, frequency separation, and relative intensity that can be accurately controlled. The analysis of the emitted radiation shows a temporal coherence and a shot-to-shot regularity in frequency significantly enhanced with respect to the self-amplified spontaneous emission. © 2015 American Physical Society. © 2015 American Physical Society.

10.1103/physrevlett.115.014801https://pubmed.ncbi.nlm.nih.gov/26182099