Cavity QED with semiconductor nanocrystals

Nano Letters
N Le ThomasU Banin

Abstract

We report on a strongly coupled cavity quantum electrodynamic (CQED) system consisting of a CdSe nanocrystal coupled to a single photon mode of a polymer microsphere. The strong exciton-photon coupling is manifested by the observation of a cavity mode splitting variant Planck's over 2piOmega(exp) between 30 und 45 microeV and photon lifetime measurements of the coupled exciton-photon state. The single photon mode is isolated by lifting the mode degeneracy in a slightly deformed microsphere cavity and addressing it by high-resolution imaging spectroscopy. This cavity mode is coupled to a localized exciton of an anisotropically shaped CdSe nanocrystal that emits highly polarized light in resonance to the cavity mode and that was placed in the maximum electromagnetic field close to the microsphere surface. The exciton confined in the CdSe nanorod exhibits an optical transition dipole moment much larger than that of atoms, the standard system for CQED experiments, and a low-temperature homogeneous line width much narrower than the high-Q cavity mode width. The observation of strong coupling in a colloidal semiconductor nanocrystal-cavity system opens the way to study fundamental quantum-optics phenomena and to implement quantum inf...Continue Reading

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Citations

Dec 21, 2010·Nature Nanotechnology·Stefan T Ochsenbein, Daniel R Gamelin
May 19, 2010·Optics Letters·Ferruccio PisanelloMassimo De Vittorio
Feb 20, 2007·Optics Letters·Yun-Feng XiaoYoung-Shin Park
Jul 1, 2014·Optics Express·Erik J LenferinkNathaniel P Stern
Oct 15, 2013·Chemical Society Reviews·Mark J FernéeBrahim Lounis
Aug 27, 2013·Nature Communications·Christos GrivasPavlos Lagoudakis
Nov 2, 2006·Nature Materials·Rudolf Bratschitsch, Alfred Leitenstorfer
Apr 3, 2012·Physical Review Letters·Francesco MasiaPaola Borri
Dec 12, 2019·The Journal of Chemical Physics·Dana E WestmorelandEmily A Weiss
Oct 26, 2013·Nanotechnology·Mark J FernéeBrahim Lounis
Oct 13, 2007·Physical Review Letters·Y FedutikM V Artemyev
Jun 27, 2020·The Journal of Physical Chemistry. B·Arkajit MandalPengfei Huo
Aug 29, 2007·Nano Letters·Matthias KahlRudolf Bratschitsch
Sep 14, 2006·Nano Letters·Young-Shin ParkHailin Wang
Mar 4, 2009·Nano Letters·Mats LarssonHailin Wang

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