Free-Electron Lasers: Status and Applications
@article{OShea2001FreeElectronLS, title={Free-Electron Lasers: Status and Applications}, author={Patrick Gerard O'Shea and Henry P. Freund}, journal={Science}, year={2001}, volume={292}, pages={1853 - 1858} }
A free-electron laser consists of an electron beam propagating through a periodic magnetic field. Today such lasers are used for research in materials science, chemical technology, biophysical science, medical applications, surface studies, and solid-state physics. Free-electron lasers with higher average power and shorter wavelengths are under development. Future applications range from industrial processing of materials to light sources for soft and hard x-rays.
232 Citations
Next-Generation X-Ray Free-Electron Lasers
- PhysicsIEEE Journal of Selected Topics in Quantum Electronics
- 2012
Research frontiers for future free-electron lasers are discussed. Attention is given to ideas for improving the temporal coherence and obtaining subfemtosecond X-ray pulses. Improving brightness of…
Atomic plasma excitations in the field of a soft x-ray laser
- Physics
- 2011
The interaction of atoms with short-wavelength radiation at ultra-high intensities is described by plasma excitation. In contrast to former works on optical radiation and ponderomotive motion of…
Theory and design of microwave photonic free-electron lasers
- Physics
- 2012
Coherent electromagnetic waves are extensively used in various fields of research and many applications. Almost every part of the electromagnetic spectrum, ranging from radio waves to hard X-rays,…
Coherence Limits of Free Electron Lasers
- PhysicsIEEE Journal of Quantum Electronics
- 2010
The e-beam and radiation wave dynamics in the radiating and nonradiating beam transport sections of free electron lasers (FELs) are analyzed in the collective regime by use of a single transverse…
FORMULATION OF EMISSION FROM RELATIVISTIC FREE ELECTRONS IN A RING STRUCTURE FOR ELECTRO-OPTICAL APPLICATIONS
- Physics
- 2005
A new scheme for high-speed electro-optical conversions with potential application to data communication is investigated. As the core of investigation, a ring model utilizing relativistic electrons…
Free-electron-laser-based biophysical and biomedical instrumentation
- Physics
- 2003
A survey of biophysical and biomedical applications of free-electron lasers (FELs) is presented. FELs are pulsed light sources, collectively operating from the microwave through the x-ray range. This…
Exact Analytical Solution for Ultrafast Electron Emission Due to Two-Color Laser Fields
- Physics2019 International Vacuum Electronics Conference (IVEC)
- 2019
This paper presents an analytical model for ultrafast electron emission from a metal surface illuminated by two-color continuous laser fields. The exact solution is valid for arbitrary fundamental…
Tuneable electron-beam-driven nanoscale light source
- Physics
- 2010
Recently demonstrated ‘light-wells’—free-electron-driven tuneable nanoscale light sources—generate optical photons as electrons travel down a nano-hole through a metal–dielectric multilayer…
Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse
- Physics
- 2003
Mega-electron-volt (MeV) electron emission from the interaction of an ultrafast (τ∼29 fs), intense (>1018 W/cm2) laser pulse with underdense plasmas has been studied. A beam of MeV electrons with a…
Applications of Free-Electron Lasers in the Biological and Material Sciences¶
- PhysicsPhotochemistry and photobiology
- 2005
Abstract Free-Electron Lasers (FELs) collectively operate from the terahertz through the ultraviolet range and via intracavity Compton backscattering into the X-ray and gamma-ray regimes. FELs are…
References
SHOWING 1-10 OF 25 REFERENCES
High-gain harmonic-generation free-electron laser
- PhysicsScience
- 2000
The approach uses a laser-seeded free-electron laser to produce amplified, longitudinally coherent, Fourier transform-limited output at a harmonic of the seed laser, with the ultimate goal of extending the approach to provide an intense, highly coherent source of hard x-rays.
EXPERIMENTS ON RADIATION BY FAST ELECTRON BEAMS
- Physics
- 1953
The results of some experiments on millimeter wave and light generation by means of an undulator are described. After a brief survey of the theoretical background the design of a magnet system is…
Observation of stimulated emission of radiation by relativistic electrons in a spatially periodic transverse magnetic field
- Physics
- 1975
Abstract : Gain has been observed at 10.6 micrometers due to stimulated emission of radiation by relativistic electrons in a spatially periodic transverse magnetic field. The magnitude of the…
A millimeter and submillimeter wavelength free‐electron laser
- Physics
- 1989
Measurements of millimeter and submillimeter wavelength emission (240 GHz<ω/2π<470 GHz) from a free‐electron laser are reported. The laser operates as a superradiant amplifier and without an axial…
Microwave radiation from a high-gain free-electron laser amplifier.
- PhysicsPhysical review letters
- 1985
A high-gain, high-extraction-efficiency, linearly polarized free-electron laser amplifier has been operated at 34.6 GHz and results are in good agreement with linear models at small signal levels and nonlinear models at large signal levels.
First observation of self-amplified spontaneous emission in a free-electron laser at 109 nm wavelength
- PhysicsPhysical review letters
- 2000
We present the first observation of self-amplified spontaneous emission (SASE) in a free-electron laser (FEL) in the vacuum ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron…
Nonlinear harmonic generation in free-electron lasers
- PhysicsIEEE Journal of Quantum Electronics
- 2000
A three-dimensional nonlinear simulation code to treat multiple frequencies simultaneously is described and used to study nonlinear harmonic generation in free-electron lasers (FELs). Strong…
Stimulated Emission of Bremsstrahlung in a Periodic Magnetic Field
- Physics
- 1971
The Weizsacker‐Williams method is used to calculate the gain due to the induced emission of radiation into a single electromagnetic mode parallel to the motion of a relativistic electron through a…
Measurements of High Gain and Intensity Fluctuations in a Self-Amplified, Spontaneous-Emission Free-Electron Laser
- Physics
- 1998
An x-ray laser would offer a unique way to explore the structure of matter at the atomic and molecular scale. Among the various schemes proposed to reach this wavelength region, the free-electron…
SELF-AMPLIFIED SPONTANEOUS EMISSION DRIVEN BY A HIGH-BRIGHTNESS ELECTRON BEAM
- Physics
- 1998
We report the first high-gain self-amplified spontaneous emission experiment at 15 {mu}m driven by a high-brightness 17-MeV electron beam. A change of two decades in the beam current yields an…