title: Fabrication of nitrogen vacancy color centers by femtosecond pulse laser illumination.
abstract: We report on a novel method to fabricate single, multiple and large-area high-density ensembles of nitrogen vacancy (NV) color centers in synthetic type Ib bulk diamond by femtosecond laser illumination. Electron beams generated in propagation of intense infrared laser pulses in air sputtered on a diamond sample under high temperature aroused by the laser illumination, creating NV color centers. Typical photoluminescence (PL) spectra of NV centers could be observed on the illuminated spots. Photon streams from individual photoluminescent points exhibited anti-bunching effect by the second-order correlation measurement, evidencing single and multiple photon-emitters around the laser illuminated spots.
authors.affiliation: State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Gengxu
authors.initials: G
authors.lastname: Chen
authors.forename: Min
authors.initials: M
authors.lastname: Song
authors.forename: Xueting
authors.initials: X
authors.lastname: Ci
authors.forename: Botao
authors.initials: B
authors.lastname: Wu
authors.forename: E
authors.initials: E
authors.lastname: Wu
authors.forename: Heping
authors.initials: H
authors.lastname: Zeng
mesh_terms: D003116:Color; D018130:Diamond / Q000737:chemistry* / Q000528:radiation effects*; D007834:Lasers; D008029:Lighting / Q000295:instrumentation* / Q000379:methods*; D008422:Materials Testing; D009584:Nitrogen / Q000737:chemistry* / Q000528:radiation effects*; D017785:Photons
chemical_list: D018130:Diamond; D009584:Nitrogen