Numerical Study of Near-Infrared Photodetectors with Surface-Plasmon Antenna for Optical Communication
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概要
- 論文の詳細を見る
We propose an InP-based nanoscale metal–semiconductor–metal photodiode with a surface plasmon antenna composed of gold slit arrays for optical communication systems. Resonant modes of the surface plasmon antenna are numerically simulated by the finite-difference time-domain method. The calculation results suggest the advantage of the hybrid mode, which is produced by a Wood–Rayleigh anomaly mode and a vertical cavity mode. The hybrid mode enables a quantum efficiency of more than 50% when using a 250-nm-thick InGaAs absorption layer. A higher efficiency of about 95% can be achieved by combining a surface plasmon antenna with a distributed Bragg reflector consisting of 20 periods of quarter-wave InP/InGaAsP layers.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-04-25
著者
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FUJIKATA Junichi
Nano Electronics Res. Labs., NEC Corp.
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NISHI Kenichi
Nano Electronics Res. Labs., NEC Corp.
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OKAMOTO Daisuke
Nano Electronics Res. Labs., NEC Corp.
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OHASHI Keishi
Nano Electronics Res. Labs., NEC Corp.
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Ohashi Keishi
Nano Electronics Research Laboratories, NEC Corporation, Tsukuba, Ibaraki 305-8501, Japan
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Fujikata Junichi
Nano Electronics Research Laboratories, NEC Corporation, Tsukuba, Ibaraki 305-8501, Japan
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Nishi Kenichi
Nano Electronics Research Laboratories, NEC Corporation, Tsukuba, Ibaraki 305-8501, Japan
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- Application of Surface-Plasmon Antenna to Near-Infrared Photodetectors for Optical Communication
- Numerical Study of Near-Infrared Photodetectors with Surface-Plasmon Antenna for Optical Communication