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

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 be...

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Published inOptics express Vol. 19; no. 19; pp. 18260 - 18271
Main Authors Tate, Naoya, Naruse, Makoto, Nomura, Wataru, Kawazoe, Tadashi, Yatsui, Takashi, Hoga, Morihisa, Ohyagi, Yasuyuki, Sekine, Yoko, Fujita, Hiroshi, Ohtsu, Motoichi
Format Journal Article
LanguageEnglish
Published United States 12.09.2011
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Summary: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.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.19.018260