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Electro-optic switch based on near-field-coupled quantum dots

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Abstract

The propagation of exciton polaritons in near-field-coupled quantum-dot (QD) chains is modeled by a density-matrix formalism. It is shown that at least for low-temperature operation it is possible using electronically controlled switching by the quantum-confined Stark effect in such QD chains to rival and outperform room-temperature CMOS electronics in footprint and switch energy, though not in speed.

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Acknowledgments

The authors acknowledge partial support from the Swedish Agency for Innovation Systems (VINNOVA) and from the Japan–Sweden Bilateral Joint Project supported by the Japan Society for the Promotion of Science (JSPS) as well as from the ECOC 2004 Foundation. The authors acknowledge valuable discussions with Prof. Hans Ågren, KTH as well as with Prof Motoichi Ohtsu, Univ of Tokyo, Japan, Dr Katsuyuki Nobusada, Institute for Molecular Science, Japan and Dr Makoto Naruse, National Institute of Information and Communications Technology, Japan.

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Authors and Affiliations

  1. Laboratory of Photonics and Microwave Engineering, Royal Institute of Technology (KTH), SE-164 40, Kista, Sweden

    Petter Holmström & Lars Thylén

  2. Hewlett-Packard Laboratories, Palo Alto, CA, 94304, USA

    Lars Thylén

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  1. Petter Holmström
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  2. Lars Thylén
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Correspondence to Petter Holmström.

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Holmström, P., Thylén, L. Electro-optic switch based on near-field-coupled quantum dots. Appl. Phys. A 115, 1093–1101 (2014). https://doi.org/10.1007/s00339-014-8420-5

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  • DOI: https://doi.org/10.1007/s00339-014-8420-5

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