Spontaneous emission spectrum of a two-level atom in a very high Q cavity

Abstract

In this paper we consider an initially excited two-level system coupled to a monomode cavity, and compute exact expressions for the spectra spontaneously emitted by each system in the general case where they have arbitrary linewidths and frequencies. Our method is based on the fact that this problem has an easily solvable classical counterpart, which provides a clear interpretation of the evidenced phenomena. We show that if the cavity linewidth is much lower than the atomic linewidth, photons are emitted at the cavity frequency, even if the atom and the cavity are strongly detuned. We also study the links between the spontaneous emission spectra and the fluorescence spectra emitted when the atom is driven by a classical field of tunable frequency.

21 pages, 5 figures

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Cited by in corpus (9)

• Luminescence Spectra of Quantum Dots in Microcavities. II. Fermions
• Luminescence Spectra of Quantum Dots in Microcavities. I. Bosons
• Origin of the emission within the cavity mode of coupled quantum dot-cavity systems
• Cavity-funneled generation of indistinguishable single photons from strongly dissipative quantum emitters
• Spectroscopic properties of inhomogeneously broadened spin ensembles in a cavity
• Influence of Pure Dephasing on Emission Spectra from Single Photon Sources
• Influence of electron-acoustic phonon scattering on off-resonant cavity feeding within a strongly coupled quantum-dot cavity system
• Vacuum Rabi spectra of a single quantum emitter
• Dissipative light-matter coupling and anomalous dispersion in nonideal cavities