title: Quantum Optical Signature of Plasmonically Coupled Nanocrystal Quantum Dots.
abstract: Small clusters of two to three silica-coated nanocrystals coupled to plasmonic gap-bar antennas can exhibit photon antibunching, a characteristic of single quantum emitters. Through a detailed analysis of their photoluminescence emissions characteristics, it is shown that the observed photon antibunching is the evidence of coupled quantum dot formation resulting from the plasmonic enhancement of dipole-dipole interaction.
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Niladri S
authors.initials: NS
authors.lastname: Karan
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Hue Minh
authors.initials: HM
authors.lastname: Nguyen
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Mangum
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Yagnaseni
authors.initials: Y
authors.lastname: Ghosh
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Chris J
authors.initials: CJ
authors.lastname: Sheehan
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Hollingsworth
authors.affiliation: Center for Integrated Nanotechnologies, Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Han
authors.initials: H
authors.lastname: Htoon
keywords: core/shell nanocrystals; photon statistics; plasmonics; quantum dot molecules; quantum optics