Decision making based on optical excitation transfer via near-field interactions between quantum dots

Makoto Naruse, Wataru Nomura, Masashi Aono, Motoichi Ohtsu, Yannick Sonnefraud, Aurélien Drezet, Serge Huant, Song Ju Kim

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    Optical near-field interactions between nanostructured matters, such as quantum dots, result in unidirectional optical excitation transfer when energy dissipation is induced. This results in versatile spatiotemporal dynamics of the optical excitation, which can be controlled by engineering the dissipation processes and exploited to realize intelligent capabilities such as solution searching and decision making. Here, we experimentally demonstrate the ability to solve a decision making problem on the basis of optical excitation transfer via near-field interactions by using colloidal quantum dots of different sizes, formed on a geometry-controlled substrate. We characterize the energy transfer behavior due to multiple control light patterns and experimentally demonstrate the ability to solve the multi-armed bandit problem. Our work makes a decisive step towards the practical design of nanophotonic systems capable of efficient decision making, one of the most important intellectual attributes of the human brain.

    Original languageEnglish
    Article number154303
    JournalJournal of Applied Physics
    Volume116
    Issue number15
    DOIs
    Publication statusPublished - Oct 21 2014

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

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    Naruse, M., Nomura, W., Aono, M., Ohtsu, M., Sonnefraud, Y., Drezet, A., Huant, S., & Kim, S. J. (2014). Decision making based on optical excitation transfer via near-field interactions between quantum dots. Journal of Applied Physics, 116(15), [154303]. https://doi.org/10.1063/1.4898570