Published September 24, 2012 | Version v1
Journal article Metadata-only

Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering

Creators

  • 1. Particle Beam Physics Laboratory, Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095 (United States)
  • 2. ENEA C.R. Frascati, Via E. Fermi, 45 00044 Frascati, RM (Italy)
  • 3. INFN-LNF, Via E. Fermi, 40 00044 Frascati, RM (Italy)
  • 4. INFN-Roma Tor Vergata and University of Rome Tor Vergata, Via della Ricerca Scientifica, 1-00133 Rome (Italy)
  • 5. SOLEIL, L'Orme des Merisiers Saint-Aubin, BP 48 91192 GIF-sur-Yvette Cedex (France)
  • 6. Università degli Studi di Roma La Sapienza, P.le Aldo Moro 5, 00185 Roma (Italy)
  • 7. Università degli Studi di Milano and INFN-MI, Via Celoria, 16 20133 Milano (Italy)

Description

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.

Additional details

Identifiers

DOI
10.1063/1.4754612;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
101
Journal Issue
13
Journal Page Range
p. 134102-134102.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44039263
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
AMPLIFIERS; ELECTRON BEAMS; FOURIER TRANSFORMATION; FREE ELECTRON LASERS; MODULATION; SIMULATION; SUPERRADIANCE; THREE-DIMENSIONAL CALCULATIONS; TIME DEPENDENCE; WIGGLER MAGNETS
Descriptors DEC
BEAMS; ELECTRONIC EQUIPMENT; EMISSION; ENERGY-LEVEL TRANSITIONS; EQUIPMENT; INTEGRAL TRANSFORMATIONS; LASERS; LEPTON BEAMS; MAGNETS; PARTICLE BEAMS; PHOTON EMISSION; STIMULATED EMISSION; TRANSFORMATIONS

Optional Information

Notes
(c) 2012 American Institute of Physics