{ "id": "cond-mat/0701617", "version": "v1", "published": "2007-01-25T15:06:52.000Z", "updated": "2007-01-25T15:06:52.000Z", "title": "Contrast in transmission spectroscopy of a single quantum dot", "authors": [ "B. D. Gerardot", "S. Seidl", "P. A. Dalgarno", "M. Kroner", "K. Karrai", "A. Badolato", "P. M. Petroff", "R. J. Warburton" ], "doi": "10.1063/1.2743750", "categories": [ "cond-mat.mes-hall" ], "abstract": "We perform transmission spectroscopy on single quantum dots and examine the effects of a resident carriers spin, the incident laser spot size, polarization, and power on the experimental contrast. We demonstrate a factor of 4 improvement in the maximum contrast by using a solid immersion lens to decrease the spot area. This increase yields a maximum signal to noise ratio of 2000 Hz-1/2, which will allow for MHz detection frequencies. We anticipate that this improvement will allow further investigation of spectral fluctuation and open up the feasibility for an all-optical read-out of an electron spin in a quantum dot.", "revisions": [ { "version": "v1", "updated": "2007-01-25T15:06:52.000Z" } ], "analyses": { "keywords": [ "single quantum dot", "perform transmission spectroscopy", "mhz detection frequencies", "resident carriers spin", "solid immersion lens" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }