@inproceedings{7930186379a345ef90cbe466161c153a,
title = "Plasmonic properties of AuSi and its nanostructures",
abstract = "Plasmon-induced hot electrons have attracted a great deal of interest as a novel route for photodetection and light energy harvesting. In this work, we investigate the plasmonic properties of AuSi as a novel plasmonic material for hot-electron infrared photodetection. Calculation by the Bruggeman's theory shows that the plasma frequency is red-shifted with decreasing gold filling ratio. A plasmonic nanostructure with a periodic grating is then designed for surface plasmon excitation. The absorbance by AuSi can reach 0.87 at a wavelength of 2000nm due to the surface plasmon resonance on metal stripes. The AuSi nano-antenna array is adopted to improve the absorbance up to 95% with polarization independence. AuSi possesses much lower free electron concentration than Au, and thus longer mean free path of hot electrons. With adjustable Schottky barrier, the proposed AuSi-Si hot electron detector may have potential in fields of silicon-based integrated photonics and infrared imaging.",
keywords = "AuSi, hot electrons, photodetection, Schottky barrier, surface plasmons",
author = "Yang Pang and Zhiqiang Yang and Kang Du and Wending Zhang and Ting Mei",
note = "Publisher Copyright: {\textcopyright} 2019 SPIE.; 11th International Conference on Information Optics and Photonics, CIOP 2019 ; Conference date: 06-08-2019 Through 09-08-2019",
year = "2019",
doi = "10.1117/12.2549219",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Hannan Wang",
booktitle = "Eleventh International Conference on Information Optics and Photonics, CIOP 2019",
}