title: Anti-bunching and luminescence blinking suppression from plasmon-interacted single CdSe/ZnS quantum dot.
abstract: CdSe/ZnS colloidal quantum dots generally exist as blinking phenomena during the luminescence process that remarkably influences its applications. In this work, we used the surface plasmonic effect to effectively modulate single quantum dots. Obvious contrasts have been observed by comparing single quantum dots on silica and gold films. The surface plasmon is shown to obviously suppress the blinking of single quantum dots. With further demonstrated second- order correlation measurements, an anti-bunching effect was observed. The anti-bunching dip gives the smallest value of g(2)(0) = 0.15, and the lifetime of the exciton has been reduced. This method presents the application's potential towards tunable high-emitting-speed single photon sources at room temperature.
authors.affiliation: Key Laboratory of Quantum Information, CAS, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Xiao-Wei
authors.initials: XW
authors.lastname: Wu
authors.forename: Ming
authors.initials: M
authors.lastname: Gong
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Dong
authors.forename: Jin-Ming
authors.initials: JM
authors.lastname: Cui
authors.forename: Yong
authors.initials: Y
authors.lastname: Yang
authors.forename: Fang-Wen
authors.initials: FW
authors.lastname: Sun
authors.forename: Guang-Can
authors.initials: GC
authors.lastname: Guo
authors.forename: Zheng-Fu
authors.initials: ZF
authors.lastname: Han
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008163:Luminescent Measurements / Q000295:instrumentation*; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D018036:Selenium Compounds; D013440:Sulfides; D017967:Zinc Compounds; C058667:cadmium selenide; C031238:zinc sulfide