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 journalArticle

3 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

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near fields
quantum dots
modulation
emission spectra
energy transfer
interactions
evaluation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Tate, N., Naruse, M., Nomura, W., Kawazoe, T., Yatsui, T., Hoga, M., ... Ohtsu, M. (2011). Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots. Optics Express, 19(19), 18260-18271. https://doi.org/10.1364/OE.19.018260

Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots. / Tate, Naoya; Naruse, Makoto; Nomura, Wataru; Kawazoe, Tadashi; Yatsui, Takashi; Hoga, Morihisa; Ohyagi, Yasuyuki; Sekine, Yoko; Fujita, Hiroshi; Ohtsu, Motoichi.

In: Optics Express, Vol. 19, No. 19, 12.09.2011, p. 18260-18271.

Research output: Contribution to journalArticle

Tate, N, Naruse, M, Nomura, W, Kawazoe, T, Yatsui, T, Hoga, M, Ohyagi, Y, Sekine, Y, Fujita, H & Ohtsu, M 2011, 'Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots', Optics Express, vol. 19, no. 19, pp. 18260-18271. https://doi.org/10.1364/OE.19.018260
Tate, Naoya ; Naruse, Makoto ; Nomura, Wataru ; Kawazoe, Tadashi ; Yatsui, Takashi ; Hoga, Morihisa ; Ohyagi, Yasuyuki ; Sekine, Yoko ; Fujita, Hiroshi ; Ohtsu, Motoichi. / Demonstration of modulatable optical near-field interactions between dispersed resonant quantum dots. In: Optics Express. 2011 ; Vol. 19, No. 19. pp. 18260-18271.
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