Coherent light generators – Particular resonant cavity – Specified cavity component
Patent
1996-11-12
1998-08-04
Healy, Brian
Coherent light generators
Particular resonant cavity
Specified cavity component
372 2, 372 74, H01S 308
Patent
active
057905851
ABSTRACT:
Free electron laser apparatus, for producing coherent electromagnetic radiation within a spectral range extending from millimeter to visible wavelengths, includes elements for generating an electron beam and for directing the beam to move over the surface of a diffraction grating, thereby producing electromagnetic radiation. Optical or quasi-optical elements confine the electromagnetic radiation, including bound surface mode radiation, to generate feedback, resulting in stimulated, coherent emission. Methods are disclosed for increasing the electron beam current above a certain value so as to provide sufficient feedback of the electromagnetic radiation for producing stimulated, coherent emission.
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Van den Berg, P.M. and Tan, T. H. (1974) "Smith-Purcell radiation from a line charge moving parallel to a reflection grating with rectangular profile", J. Opt. Soc. of Am. 64(3):325-328, Mar. 1974.
Healy Brian
The Trustees of Dartmouth College
Wise Robert E.
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