NDLI: Visible and ultraviolet radiation generation using a gas-loaded free-electron laser

Content Provider	IEEE Xplore Digital Library
Author	Fauchet, A.-M. Feinstein, J. Gover, A. Pantell, R.
Copyright Year	1965
Abstract	Gas loading of a free-electron laser modifies the phase-matching condition while the small-signal gain expression remains the same when written in appropriate form. This permits a wider parameter space than the vacuum FEL, which is particularly advantageous at shorter wavelength operation. Scattering of the electrons by the gas limits the interaction length, but available gains are still high enough to allow oscillation build-up. For example, a 0.5-μm wavelength helical wiggler FEL utilizing a 41 MeV electron beam is restricted to a length of 14 cm, has a small signal gain of 21 percent, and builds up to saturation in less than 1μs. Tunability of this device over several microns is easily obtained by changing the gas pressure.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1332
Ending Page	1341
Page Count	10
File Size	1194704
File Format	PDF
ISSN	00189197
Volume Number	20
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Free electron lasers Gas lasers Undulators Electron beams Magnetic fields Electron optics X-ray lasers Optical scattering Optical design Tunable circuits and devices
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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