Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 56: Quantum effects: QED II
Q 56.5: Vortrag
Freitag, 21. März 2014, 11:30–11:45, DO26 208
Spontaneous Scattering in the Quantum Regime of the Free-Electron Laser — •Rainer Endrich1, Peter Kling1,2, Enno Giese1, Wolfgang P. Schleich1, and Roland Sauerbrey2 — 1Institut für Quantenphysik, Universität Ulm, 89069 Ulm, Germany — 2Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
Free-Electron Lasers (FEL) provide coherent and widely tunable radiation of high brilliance. Most theoretical descriptions are based on classical physics in agreement with experimental results. However, in the near future an FEL working in the quantum regime, is within reach at the Helmholtz-Zentrum Dresden-Rossendorf. In our previous work we have used a one-dimensional single-mode theory to identify an effective two-level system in which the lasing process is intuitive and the natural linewidth can be easily calculated. We now extend this model to three space dimensions and include spontaneous scattering into non-resonant modes analogously to the spontaneous emission of a two-level atom. We investigate this scattering mechanism, derive the corresponding decay constant and discuss the fundamental differences in comparison to conventional lasers.