Modeling paraxial wave propagation in free-electron laser oscillators


Karssenberg, J.G. and Slot, P.J.M. van der and Volokhine, I.V. and Verschuur, J.W.J. and Boller, K.J. (2006) Modeling paraxial wave propagation in free-electron laser oscillators. Journal of Applied Physics, 100 (9). 093106. ISSN 0021-8979

[img] PDF
Restricted to UT campus only
: Request a copy
Abstract:Modeling free-electron laser (FEL) oscillators requires calculation of both the light-beam interaction within the undulator and the light propagation outside the undulator. We have developed a paraxial optical propagation code that can be combined with various existing models of gain media, for example, Genesis 1.3 for FELs, to model oscillators with full paraxial wave propagation within the resonator. A flexible scripting interface is used both to describe the optical resonator and to control the codes for propagation and amplification. To illustrate its capabilities, we numerically investigate two significantly different FEL oscillators: the free-electron laser for infrared experiments (FELIX) system and the vacuum-ultraviolet (VUV)-FEL oscillator of the proposed high-gain fourth generation light source. For the FELIX system, we find that diffraction losses are a considerable part of the single-pass cavity loss (at a wavelength of 40 µm). We also demonstrate that a resonator with hole coupling may be a viable alternative to a standard resonator with transmissive optics for the high gain VUV-FEL oscillator.
Item Type:Article
Copyright:©2006 American Institute of Physics
Science and Technology (TNW)
Research Group:
Link to this item:
Official URL:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page

Metis ID: 233777