Wide range refractive index sensor based on a coupled structure of Au nanocubes and Au film

doi:10.1364/OME.9.003079

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Wide range refractive index sensor based on a coupled structure of Au nanocubes and Au film
	Wang, Xiangxian 1; Zhu, Jiankai 1; Wen, Xiaolei 2; Wu, Xiaoxiong 1; Wu, Yuan 1; Su, Yingwen 1; Tong, Huan 1; Qi, Yunping 3; Yang, Hua 1
刊名	OPTICAL MATERIALS EXPRESS
	2019-07
卷号	9 期号:7 页码:3079-3088
关键词	Chemical sensors Gold Plasmons Refractometers Resonance Surface plasmon resonance
ISSN号	2159-3930
DOI	10.1364/OME.9.003079
英文摘要	We report a plasmonic refractive index sensor with a wide measurement range based on periodic gold nanocubes coupled with a gold film. The theoretical sensing range is 1.0-1.8. The structure consists of two-dimensional gratings composed of periodic nanocubes that both excite local surface plasmon resonance and stimulate propagating surface plasmon resonance. The strong resonance of the multiple surface plasmons is suitable for use in refractive index sensing and effectively reduces the full width at half maximum of the resonance peak. The sensing performance of each resonant mode in the reflected spectrum is discussed in detail. The highest sensitivity and figure of merit of the proposed sensor are 1002 nm per refractive index units (RIU) and 417 RIU-1, respectively. The proposed sensor will be useful for bio-chemical sensing applications such as measuring changes in the refractive index of gases or liquids. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
资助项目	National Natural Science Foundation of China (NSFC)[61865008]
WOS研究方向	Materials Science ; Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000473336100035
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31777]
专题	理学院
通讯作者	Wang, Xiangxian
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China 2.Univ Sci & Technol China, Ctr Micro & Nanoscale Res & Fabricat, Hefei 230026, Anhui, Peoples R China 3.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiangxian,Zhu, Jiankai,Wen, Xiaolei,et al. Wide range refractive index sensor based on a coupled structure of Au nanocubes and Au film[J]. OPTICAL MATERIALS EXPRESS,2019,9(7):3079-3088.
APA	Wang, Xiangxian.,Zhu, Jiankai.,Wen, Xiaolei.,Wu, Xiaoxiong.,Wu, Yuan.,...&Yang, Hua.(2019).Wide range refractive index sensor based on a coupled structure of Au nanocubes and Au film.OPTICAL MATERIALS EXPRESS,9(7),3079-3088.
MLA	Wang, Xiangxian,et al."Wide range refractive index sensor based on a coupled structure of Au nanocubes and Au film".OPTICAL MATERIALS EXPRESS 9.7(2019):3079-3088.