{ "id": "1109.0876", "version": "v1", "published": "2011-09-05T12:43:31.000Z", "updated": "2011-09-05T12:43:31.000Z", "title": "Optical pumping and non-destructive readout of a single magnetic impurity spin in an InAs/GaAs quantum dot", "authors": [ "Emmanuel Baudin", "Emile Benjamin", "Aristide LemaƮtre", "Olivier Krebs" ], "comment": "11 pages, 3 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "We report on the resonant optical pumping of the |\\pm1> spin states of a single Mn dopant in an InAs/GaAs quantum dot embedded itself in a charge tuneable device. The experiment relies on a \"W\" scheme of transitions reached when a suitable longitudinal magnetic field is applied. The optical pumping is achieved via the resonant excitation of the central {\\Lambda} system at the neutral exciton X0 energy. For a specific gate voltage, the red-shifted photoluminescence of the charged exciton X- is observed, which allows non-destructive readout of the spin polarization. An arbitrary spin preparation in the |+1> or |-1> state characterized by a polarization near or above 50% is evidenced.", "revisions": [ { "version": "v1", "updated": "2011-09-05T12:43:31.000Z" } ], "analyses": { "subjects": [ "78.67.Hc", "33.80.Be", "75.50.Pp", "78.55.Cr" ], "keywords": [ "single magnetic impurity spin", "inas/gaas quantum dot", "optical pumping", "non-destructive readout", "neutral exciton x0 energy" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevLett.107.197402", "journal": "Physical Review Letters", "year": 2011, "month": "Nov", "volume": 107, "number": 19, "pages": 197402 }, "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011PhRvL.107s7402B" } } }