The sensitivity of nonlinear harmonic generation to electron beam quality in free electron lasers
(2002) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 483(1-2). p.101-106- Abstract
- The generation of harmonics through a nonlinear mechanism driven by bunching at the fundamental has sparked interest as a path toward enhancing and extending the usefulness of an X-ray free-electron laser (FEL) facility. The sensitivity of the nonlinear harmonic generation to undulator imperfections, electron beam energy spread, peak current, and emittance is important in an evaluation of the process. Typically, linear instabilities in FELs are characterized by increased sensitivity to both electron beam and undulator quality with increasing harmonic number. However, since the nonlinear harmonic generation mechanism is driven by the growth of the fundamental, the sensitivity of the nonlinear harmonic mechanism is not expected to be... (More)
- The generation of harmonics through a nonlinear mechanism driven by bunching at the fundamental has sparked interest as a path toward enhancing and extending the usefulness of an X-ray free-electron laser (FEL) facility. The sensitivity of the nonlinear harmonic generation to undulator imperfections, electron beam energy spread, peak current, and emittance is important in an evaluation of the process. Typically, linear instabilities in FELs are characterized by increased sensitivity to both electron beam and undulator quality with increasing harmonic number. However, since the nonlinear harmonic generation mechanism is driven by the growth of the fundamental, the sensitivity of the nonlinear harmonic mechanism is not expected to be significantly greater than that of the fundamental. In this paper, we study the effects of electron beam quality, more specifically, emittance, energy spread, and peak current, on the nonlinear harmonics in a 1.5-Angstrom FEL, and show that the decline in the harmonic emission roughly follows that of the fundamental. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/334355
- author
- Biedron, Sandra G. LU ; Huang, ZR ; Kim, KJ ; Milton, S ; Dattoli, G ; Ottaviani, PL ; Renieri, A ; Fawley, WM ; Freund, HP and Nuhn, HD
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- intense particle beams and radiation sources, frequency conversion, free-electron lasers, harmonic generation
- in
- Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
- volume
- 483
- issue
- 1-2
- pages
- 101 - 106
- publisher
- Elsevier
- external identifiers
-
- wos:000176527000020
- scopus:0036567627
- ISSN
- 0167-5087
- DOI
- 10.1016/S0168-9002(02)00292-9
- language
- English
- LU publication?
- yes
- id
- ec44d421-8ee1-4838-bae2-dda4fd20bd8c (old id 334355)
- date added to LUP
- 2016-04-01 16:11:21
- date last changed
- 2022-01-28 17:55:32
@article{ec44d421-8ee1-4838-bae2-dda4fd20bd8c,
abstract = {{The generation of harmonics through a nonlinear mechanism driven by bunching at the fundamental has sparked interest as a path toward enhancing and extending the usefulness of an X-ray free-electron laser (FEL) facility. The sensitivity of the nonlinear harmonic generation to undulator imperfections, electron beam energy spread, peak current, and emittance is important in an evaluation of the process. Typically, linear instabilities in FELs are characterized by increased sensitivity to both electron beam and undulator quality with increasing harmonic number. However, since the nonlinear harmonic generation mechanism is driven by the growth of the fundamental, the sensitivity of the nonlinear harmonic mechanism is not expected to be significantly greater than that of the fundamental. In this paper, we study the effects of electron beam quality, more specifically, emittance, energy spread, and peak current, on the nonlinear harmonics in a 1.5-Angstrom FEL, and show that the decline in the harmonic emission roughly follows that of the fundamental. (C) 2002 Elsevier Science B.V. All rights reserved.}},
author = {{Biedron, Sandra G. and Huang, ZR and Kim, KJ and Milton, S and Dattoli, G and Ottaviani, PL and Renieri, A and Fawley, WM and Freund, HP and Nuhn, HD}},
issn = {{0167-5087}},
keywords = {{intense particle beams and radiation sources; frequency conversion; free-electron lasers; harmonic generation}},
language = {{eng}},
number = {{1-2}},
pages = {{101--106}},
publisher = {{Elsevier}},
series = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}},
title = {{The sensitivity of nonlinear harmonic generation to electron beam quality in free electron lasers}},
url = {{http://dx.doi.org/10.1016/S0168-9002(02)00292-9}},
doi = {{10.1016/S0168-9002(02)00292-9}},
volume = {{483}},
year = {{2002}},
}