Light detection enhanced by surface plasmon resonance in metal film

被引：36

作者：

Fukuda, Mitsuo ^{[1
]}

Aihara, Takuma ^{[1
]}

Yamaguchi, Kenzo ^{[1
]}

Ling, Yu Y. ^{[1
]}

Miyaji, Kazuma ^{[1
]}

Tohyama, Makoto ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Elect & Elect Engn, Aichi 4418580, Japan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 15期

关键词：

elemental semiconductors; gold; metallic thin films; nanostructured materials; optical sensors; photodiodes; Schottky diodes; silicon; surface plasmon resonance; OPTICAL-DATA STORAGE; SCHOTTKY DETECTORS; NANOPARTICLES; ANTENNA; LASER; AU;

D O I：

10.1063/1.3402771

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Light detection enhanced by surface plasmons was confirmed in Au film/n-type Si Schottky structures. Electrons excited directly with light in Au film overflowed into the n-type silicon, and this excitation was enhanced by surface plasmons induced by Au nanorods attached to the Au film. Excitation was clearly observed in a wavelength range corresponding to the energy of less than the band gap of silicon. The feasibility of Schottky-type photodiodes, in which electrons were never generated by absorption in semiconductors but directly excited in metal, was experimentally demonstrated.

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页数：3

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