Lasing on the third harmonic of the fundamental FEL wavelength has recently been accomplished. Lasing on even higher harmonics appears to be possible and can offer advantages of various kinds. A serious problem is the necessity for suppressing lasing on unwanted harmonics and selecting only the desired one. We have devised a technique to select the desired harmonic that depends upon a modification to the design of the wiggler. We discuss the principles of this modification, the properties of modified wigglers, and give an example of a wiggler design that employs this technique.
Compound wiggler to lase on a selected harmonic / R.W. Warren, N. Piovella. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 304:1-3(1991), pp. 696-699. ((Intervento presentato al 12. convegno International conference on free electron laser ( FEL 90 ) tenutosi a Paris nel 1990.
Titolo: | Compound wiggler to lase on a selected harmonic |
Autori: | |
Settore Scientifico Disciplinare: | Settore FIS/03 - Fisica della Materia |
Data di pubblicazione: | 1991 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/0168-9002(91)90958-S |
Appare nelle tipologie: | 01 - Articolo su periodico |