Published May 20, 2002
| Version v1
Journal article
Experimental characterization of nonlinear harmonic radiation from a visible self-amplified spontaneous emission free-electron laser at saturation
Creators
- 1. Department of Physics and Astronomy, UCLA, Los Angeles, California 90095 (United States)
- 2. Accelerator Test Facility, NSLS, BNL, Upton, New York 11973 (United States)
- 3. SSRL, SLAC, Stanford, California 94309 (United States)
Description
Nonlinear harmonic radiation was observed using the VISA self-amplified, spontaneous emission (SASE) free-electron laser (FEL) at saturation. The gain lengths, spectra, and energies of the three lowest SASE FEL modes were experimentally characterized. The measured nonlinear harmonic gain lengths and center spectral wavelengths decrease with harmonic number, n , which is consistent with nonlinear harmonic theory. Both the second and third nonlinear harmonics energies are about 1% of the fundamental energy. These experimental results demonstrate for the first time the feasibility of using nonlinear harmonic SASE FEL radiation to produce coherent, femtosecond x rays
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 88
- Journal Issue
- 20
- Journal Page Range
- p. 204801-204801.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35019239
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- BEAM BUNCHING; ELECTRON BEAMS; FREE ELECTRON LASERS; HARMONIC GENERATION; SUPERRADIANCE; SYNCHROTRON RADIATION
- Descriptors DEC
- BEAM DYNAMICS; BEAMS; BREMSSTRAHLUNG; DYNAMICS; ELECTROMAGNETIC RADIATION; EMISSION; ENERGY-LEVEL TRANSITIONS; FREQUENCY MIXING; LASERS; LEPTON BEAMS; MECHANICS; PARTICLE BEAMS; PHOTON EMISSION; RADIATIONS; STIMULATED EMISSION
Optional Information
- Notes
- (c) 2002 The American Physical Society