{ "id": "1210.5574", "version": "v1", "published": "2012-10-20T02:54:33.000Z", "updated": "2012-10-20T02:54:33.000Z", "title": "Light narrowing of magnetic resonances in ensembles of nitrogen-vacancy centers in diamond", "authors": [ "K. Jensen", "V. M. Acosta", "A. Jarmola", "D. Budker" ], "categories": [ "quant-ph", "physics.atom-ph" ], "abstract": "We investigate optically detected magnetic resonance signals from an ensemble of nitrogen-vacancy centers in diamond. The signals are measured for different light powers and microwave powers, and the contrast and linewidth of the magnetic-resonance signals are extracted. For a wide range of experimental settings of the microwave and light powers, the linewidth decreases with increasing light power, and more than a factor of two \"light narrowing\" is observed.Furthermore, we identify that spin-spin interaction between nitrogen-vacancy centers and substitutional nitrogen atoms in the diamond leads to changes in the lineshape and the linewidth of the optically detected magnetic-resonance signals. Finally, the importance of the light-narrowing effect for optimizing the sensitivity of magnetic field measurements is discussed.", "revisions": [ { "version": "v1", "updated": "2012-10-20T02:54:33.000Z" } ], "analyses": { "subjects": [ "76.30.Mi", "76.70.Hb", "81.05.ug", "76.60.Es" ], "keywords": [ "nitrogen-vacancy centers", "light narrowing", "light power", "optically detected magnetic resonance signals", "substitutional nitrogen atoms" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevB.87.014115", "journal": "Physical Review B", "year": 2013, "month": "Jan", "volume": 87, "number": 1, "pages": "014115" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87a4115J" } } }