We consider a free electron laser oscillator employing an exotic undulator provided by a figure-8, a device having the orthogonal field component oscillating with a period one-half of the radial component. The harmonic spectrum of such an oscillator device is fairly reach. We have indeed emission on odd and even harmonics with orthogonal polarizations. The intracavity nonlinear coherent harmonic generation follows the harmonic undulator spectrum and in addition allows the possibility of obtaining robust and very short pulses at different wavelengths. © 2008 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Dattoli, G., Ottaviani, P. L., & Pagnutti, S. (2008). Intracavity harmonic generation in figure-8 undulator free electron lasers. Journal of Applied Physics, 104(7), -. . https://doi.org/10.1063/1.2968552