Generation of intense XVUV pulses with an optical klystron enhanced self-amplified spontaneous emission free electron laser

G. Penco, E. Allaria, G. De Ninno, E. Ferrari, L. Giannessi

Research output: Contribution to conferencePaper

Abstract

Fermi is a seeded FEL operating in high-gain harmonic generation mode. The FEL layout is constituted by a modulator and six radiators separated by a dispersive section. The modulator and the radiators can be tuned to the same resonant frequency to set up an asymmetric optical klystron configuration where self-amplified spontaneous emission can be generated and studied. This paper presents the experiment consisting in the analysis of the enhancement of the self-amplified spontaneous emission (SASE) radiation by the dispersion in the optical klystron. The FEL pulses produced with the optical klystron configuration are several orders of magnitude more intense than in pure SASE mode with the dispersion set to zero. The experimental observations are in good agreement with simulation results and theoretical expectations. A comparison with the typical high-gain harmonic generation seeded FEL operation is also provided.
Original languageEnglish
Publication statusPublished - 2014
Externally publishedYes
Event36th International Free Electron Laser Conference, FEL 2014 - Basel, Switzerland
Duration: 1 Jan 2014 → …

Conference

Conference36th International Free Electron Laser Conference, FEL 2014
CountrySwitzerland
CityBasel
Period1/1/14 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Penco, G., Allaria, E., De Ninno, G., Ferrari, E., & Giannessi, L. (2014). Generation of intense XVUV pulses with an optical klystron enhanced self-amplified spontaneous emission free electron laser. Paper presented at 36th International Free Electron Laser Conference, FEL 2014, Basel, Switzerland.