{ "id": "0712.2263", "version": "v1", "published": "2007-12-13T23:47:13.000Z", "updated": "2007-12-13T23:47:13.000Z", "title": "Two-dimensional correlation spectroscopy of two-exciton resonances in semiconductor quantum wells", "authors": [ "Lijun Yang", "Shaul Mukamel" ], "doi": "10.1103/PhysRevLett.100.057402", "categories": [ "cond-mat.mes-hall" ], "abstract": "We propose a three-pulse coherent ultrafast optical technique that is particularly sensitive to two-exciton correlations. Two Liouville-space pathways for the density matrix contribute to this signal which reveals double quantum coherences when displayed as a two-dimensional correlation plot. Two-exciton couplings spread the cross peaks along both axes, creating a characteristic highly resolved pattern. This level of detail is not available from conventional one-dimensional four-wave mixing or other two-dimensional correlation spectroscopy signals such as the photo echo, in which two-exciton couplings show up along a single axis and are highly congested.", "revisions": [ { "version": "v1", "updated": "2007-12-13T23:47:13.000Z" } ], "analyses": { "subjects": [ "78.47.-p", "42.50.Md", "71.35.Cc", "78.67.De" ], "keywords": [ "semiconductor quantum wells", "two-exciton resonances", "three-pulse coherent ultrafast optical technique", "two-dimensional correlation spectroscopy signals", "two-exciton couplings spread" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2008, "month": "Feb", "volume": 100, "number": 5, "pages": "057402" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhRvL.100e7402Y" } } }