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Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering
- Source :
- Applied physics letters 101 (2012): 134102. doi:10.1063/1.4754612, info:cnr-pdr/source/autori:G. Marcus, M. Artioli, A. Bacci, M. Bellaveglia, E. Chiadroni, A. Cianchi, F. Ciocci, M. Del Franco, G. Di Pirro, M. Ferrario, D. Filippetto, G. Gatti, L. Giannessi, M. Labat, A. Mostacci, A. Petralia, V. Petrillo, M. Quattromini, J. V. Rau, A. R. Rossi, J. B. Rosenzweig/titolo:Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering/doi:10.1063%2F1.4754612/rivista:Applied physics letters/anno:2012/pagina_da:134102/pagina_a:/intervallo_pagine:134102/volume:101
- Publication Year :
- 2012
- Publisher :
- AIP Publishing, 2012.
-
Abstract
- We report, with an unequivocal time-domain measurement, that an appropriately chosen undulator taper can compensate for an electron beam longitudinal energy-chirp in a free-electron laser amplifier, leading to the generation of single-spike radiation close to the Fourier limit. The measurements were taken using the frequency-resolved optical gating technique by employing an advanced transient-grating diagnostic geometry. The reconstructed longitudinal radiation characteristics are compared in detail to prediction from time-dependent three-dimensional simulations.
- Subjects :
- FEL
Physics
electron beam
accelerator
Physics and Astronomy (miscellaneous)
business.industry
Settore FIS/01 - Fisica Sperimentale
Fourier optics
Free-electron laser
Self-amplified spontaneous emission
Physics::Optics
Tapering
Superradiance
Undulator
Laser
law.invention
Optics
law
Cathode ray
Physics::Accelerator Physics
business
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 101
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi.dedup.....afe363cfd120ee22894e1d6773270f9e