Hermite-Gaussian decomposition of free electron laser optical fields
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Authors
Niles, S. P.
Blau, J.
Colson, W. B.
Subjects
Advisors
Date of Issue
2010
Date
Publisher
American Physical Society
Language
Abstract
Free electron lasers (FELs) are favored in many research applications due to their ability to operate primarily in the fundamental (Gaussian) mode. In oscillator FELs, the appropriate basis set for decomposition is uniquely determined by the cavity parameters. Since FEL amplifiers generate and amplify the optical field over the length of the undulator influenced only by the electron beam, the appropriate basis set is not uniquely determined. A methodology is presented to decompose the optical field with a Hermite-Gaussian basis set chosen such that the number of higher-order modes is minimized. The methodology is used to study amplifier FEL optical beams for comparison with experiment.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1103/PhysRevSTAB.13.030702
Series/Report No
Department
Physics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
This work was supported by the Office of Naval Research and the High Energy Laser Joint Technology Office.
Funder
Format
6 p.
Citation
Physical Review Special Topics - Accelerators and Beams, 13 030702 (2010) pp. 1-6
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.