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IEICE Transactions on Electronics 2005 E88-C(9):1817-1823; doi:10.1093/ietele/e88-c.9.1817
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Copyright © 2005 The Institute of Electronics, Information and Communication Engineers

Special Section on Nanophotonics and Related Techniques -- Papers

Nanophotonic Computing Based on Optical Near-Field Interactions between Quantum Dots

Makoto NARUSE1, Tetsuya MIYAZAKI1, Tadashi KAWAZOE2, Suguru SANGU3, Kiyoshi KOBAYASHI4, Fumito KUBOTA1 and Motoichi OHTSU5

1 The authors are with the National Institute of Information and Communications Technology, Koganei-shi, 184-8795 Japan. E-mail: naruse{at}nict.go.jp, 2 The author is with Japan Science and Technology Agency, Machida-shi, 194-0004 Japan., 3 The author is with Ricoh Co., Ltd., Yokohama-shi, 224-0035 Japan., 4 The author is with Tokyo Institute of Technology, Tokyo, 152-8551 Japan., 5 The author is with the University of Tokyo, Tokyo, 113-8656 Japan.

We approach nanophotonic computing on the basis of optical near-field interactions between quantum dots. A table lookup, or matrix-vector multiplication, architecture is proposed. As fundamental functionality, a data summation mechanism and digital-to-analog conversion are experimentally demonstrated using CuCl quantum dots. Owing to the diffraction-limit-free nature of nanophotonics, these architectures can achieve ultrahigh density integration compared to conventional bulky optical systems, as well as low power dissipation.

Key Words: nanophotonics, optical signal processing, optical near-field, information processing, nanophotonic computing

Manuscript received December 1, 2004. Manuscript revised April 30, 2005.


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