Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots

Naoya Tate, Makoto Naruse, Wataru Nomura, Tadashi Kawazoe, Takashi Yatsui, Morihisa Hoga, Yasuyuki Ohyagi, Yoko Sekine, Hiroshi Fujita, Motoichi Ohtsu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)18260-18271
Number of pages12
JournalOptics Express
Volume19
Issue number19
DOIs
Publication statusPublished - Sep 12 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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