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Enhanced Optical Modulation Depth of Terahertz Waves by Self‐Assembled Monolayer of Plasmonic Gold Nanoparticles
Author(s) -
Wen Tianlong,
Zhang Dainan,
Wen Qiye,
Liao Yulong,
Zhang Chong,
Li Jiayang,
Tian Wei,
Li Yuanpeng,
Zhang Huaiwu,
Li Yuanxun,
Yang Qinghui,
Zhong Zhiyong
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201600248
Subject(s) - terahertz radiation , monolayer , materials science , modulation (music) , silicon , plasmon , colloidal gold , optoelectronics , nanotechnology , nanoparticle , optics , physics , acoustics
Ultra‐large‐area self‐assembled monolayers of gold nanoparticles are coated on the intrinsic silicon to boost the generation of electron–hole pairs upon laser illumination. As a result, larger optical modulation depth of terahertz wave can be obtained by the monolayer coated silicon in comparison with the bare silicon.