Stuttgart 2012 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 4: Quanteneffekte: QED
Q 4.6: Vortrag
Montag, 12. März 2012, 11:45–12:00, V7.01
Quantum well cavity QED with squeezed light — Eyob A. Sete1, •Sumanta Das1, and Hichem Eleuch2 — 1Department of Physics, Texas A&M University, College Station, TX 77843, USA — 2Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, D-01187 Dresden, Germany
Recently, the effect of a nonresonant strong drive on the intersubband excitonic transition has been investigated and observation of Autler-Townes doublets was reported [1,2]. In light of these new results, an eminent question of interest is: How does the quantum nature of radiation emitted from a quantum well (QW) in a micro-cavity get affected in the presence of a squeezed light source and non-resonant drive? We investigate this here. We consider a semiconductor QW in a microcavity driven by coherent light and coupled to a squeezed light source. The source can be in form of a squeezed vacuum reservoir or a subthreshold optical parametric down converter. We also include exciton-exciton scattering in our analysis. In the strong-coupling and low excitation regimes, we study the intensity spectrum and the squeezing spectrum [3].
[1] J. F. Dynes, et. al. Phys. Rev. Lett. 94, 157403 (2005).
[2] M. Wagner, et. al. Phys. Rev. Lett. 105, 167401 (2010).
[3] E. A. Sete, S. Das and H. Eleuch, Phys. Rev. A 83, 023822 (2011).