Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 12: Quantum Optics II
Q 12.1: Vortrag
Montag, 5. März 2018, 14:00–14:15, K 0.016
A free-electron laser oscillator in the quantum regime — •Peter Kling1,2, Enno Giese3,1, Roland Sauerbrey2, and Wolfgang P. Schleich1 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology IQST, Universität Ulm, D-89069 Ulm — 2Helmholtz-Zentrum Dresden-Rossendorf e.V., D-01314 Dresden — 3University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
Decreasing the wavelength of a free-electron laser (FEL) increases the quantum mechanical recoil an electron experiences, when it scatters with the light fields, and ultimately leads to the emergence of quantum effects. If the recoil dominantes the dynamics, we speak of the quantum regime of the FEL [1]. In this limit, the electron populates only two resonant momentum levels [2,3].
We present here the theory of a low-gain FEL oscillator in the quantum regime and derive properties such as the gain and the steady-state photon statistics. Moreover, we compare this device with (i) the micromaser and (ii) the classical FEL.
0pt [1] R. Bonifacio, N. Piovella, and G. R. M. Robb, Fortschr. Phys. 57, 1041 (2009).
0pt [2] P. Kling et al., New J. Phys. 17, 123019 (2015).
0pt [3] P. Kling et al., Appl. Phys. B 123, 9 (2017).