Numerical study of near-infrared photodetectors with surface-plasmon antenna for optical communication

Daisuke Okamoto*, Junichi Fujikata, Kenichi Nishi, Keishi Ohashi

*この研究の対応する著者

研究成果: Article査読

16 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2921-2923
ページ数3
ジャーナルJapanese journal of applied physics
47
4 PART 2
DOI
出版ステータスPublished - 2008 4 25
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

フィンガープリント

「Numerical study of near-infrared photodetectors with surface-plasmon antenna for optical communication」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル