title: Beating the Abbe diffraction limit in confocal microscopy via nonclassical photon statistics.
abstract: We experimentally demonstrate quantum enhanced resolution in confocal fluorescence microscopy exploiting the nonclassical photon statistics of single nitrogen-vacancy color centers in diamond. By developing a general model of superresolution based on the direct sampling of the kth-order autocorrelation function of the photoluminescence signal, we show the possibility to resolve, in principle, arbitrarily close emitting centers.
authors.affiliation: Physics Department and NIS Inter-departmental Centre-University of Torino, I-10125 Torino, Italy and Istituto Nazionale di Fisica Nucleare (INFN) Sezione Torino, I-10125 Torino, Italy and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM) Sezione Torino, I-10125 Torino, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Gatto Monticone
authors.affiliation: M. V. Lomonosov Moscow State University, 119991 Moscow, Russia and Russian Academy of Sciences, Institute of Physics and Technology, 117218 Moscow, Russia.
authors.forename: K
authors.initials: K
authors.lastname: Katamadze
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Traina
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy and International Laser Center of M. V. Lomonosov Moscow State University, 119991 Moscow, Russia.
authors.forename: E
authors.initials: E
authors.lastname: Moreva
authors.affiliation: Physics Department and NIS Inter-departmental Centre-University of Torino, I-10125 Torino, Italy and Istituto Nazionale di Fisica Nucleare (INFN) Sezione Torino, I-10125 Torino, Italy and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM) Sezione Torino, I-10125 Torino, Italy.
authors.forename: J
authors.initials: J
authors.lastname: Forneris
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy.
authors.forename: I
authors.initials: I
authors.lastname: Ruo-Berchera
authors.affiliation: Physics Department and NIS Inter-departmental Centre-University of Torino, I-10125 Torino, Italy and Istituto Nazionale di Fisica Nucleare (INFN) Sezione Torino, I-10125 Torino, Italy and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM) Sezione Torino, I-10125 Torino, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Olivero
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy.
authors.forename: I P
authors.initials: IP
authors.lastname: Degiovanni
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Brida
authors.affiliation: Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM) Sezione Torino, I-10125 Torino, Italy and Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Genovese