title: Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots.
abstract: We experimentally demonstrated the basic concept of modulatable optical near-field interactions by utilizing energy transfer between closely positioned resonant CdSe/ZnS quantum dot (QD) pairs dispersed on a flexible substrate. Modulation by physical flexion of the substrate changes the distances between quantum dots to control the magnitude of the coupling strength. The modulation capability was qualitatively confirmed as a change of the emission spectrum. We defined two kinds of modulatability for quantitative evaluation of the capability, and an evident difference was revealed between resonant and non-resonant QDs.
authors.affiliation: Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, Tokyo, Japan. tate@nanophotonics.t.u-tokyo.ac.jp
authors.forename: Naoya
authors.initials: N
authors.lastname: Tate
authors.forename: Makoto
authors.initials: M
authors.lastname: Naruse
authors.forename: Wataru
authors.initials: W
authors.lastname: Nomura
authors.forename: Tadashi
authors.initials: T
authors.lastname: Kawazoe
authors.forename: Takashi
authors.initials: T
authors.lastname: Yatsui
authors.forename: Morihisa
authors.initials: M
authors.lastname: Hoga
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Ohyagi
authors.forename: Yoko
authors.initials: Y
authors.lastname: Sekine
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Fujita
authors.forename: Motoichi
authors.initials: M
authors.lastname: Ohtsu