Optical pulsation mechanism based on optical near-field interactions |
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Authors: | M Naruse H Hori K Kobayashi T Kawazoe M Ohtsu |
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Institution: | 1. National Institute of Information and Communications Technology, 4-2-1 Nukui-kita, Koganei, Tokyo, 184-8795, Japan 2. Department of Electrical Engineering and Information Systems and Nanophotonics Research Center, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan 3. Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Yamanashi, 400-8511, Japan
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Abstract: | We theoretically demonstrate optical pulsation based on optical near-field interactions between quantum nanostructures. It is composed of two quantum dot systems, each of which consists of a combination of smaller and larger quantum dots, so that optical excitation transfer occurs. With an architecture in which the two systems take the role of a timing delay and frequency up-conversion, we observe pulsation in populations pumped by continuous-wave light irradiation. The pulsation is induced with suitable setting of parameters associated with the optical near-field interactions. This will provide critical insights toward the design and implementation of experimental nanophotonic pulse generating devices. |
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