Magneto optics of single photons emitted from single InAs/GaAs self-assembled quantum dots in a planar microcavity |
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Authors: | S Alon-Braitbart E Poem L Fradkin N Akopian S Vilan E Lifshitz E Ehrenfreund D Gershoni BD Gerardot A Badolato PM Petroff |
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Institution: | aSolid State Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel;bMaterials Department, University of California, Santa Barbara, CA 93106, USA |
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Abstract: | We fully characterize the fine spectral structure of neutral and negatively charged single microcavity quantum dot excitons, using polarization-sensitive magneto-photoluminescence spectroscopy. We show that the microcavity allows the simultaneous detection of both the bright and dark excitons using Faraday configuration. Thus, we were able to fully determine the fine structure and the g-factors of the neutral and negatively charged single exciton states within the same single quantum dot. Our measurements are in excellent agreement with novel, many carrier model calculations, which take into account Coulomb and exchange interactions among all the confined e–h pair states. |
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Keywords: | QD Quantum dot Exciton Fine structure Microcavity color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6VMT-4JWC3K4-4&_mathId=mml13&_user=10&_cdi=6159&_rdoc=38&_acct=C000053510&_version=1&_userid=1524097&md5=0de639f037eb031a339a7c87085a5077" title="Click to view the MathML source" g-factor" target="_blank">alt="Click to view the MathML source">g-factor Diamagnetic shift |
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