Atomically flat symmetric elliptical nanohole arrays in a gold film for ultrasensitive refractive index sensing

Lab on a Chip ◽  
2013 ◽  
Vol 13 (13) ◽  
pp. 2541 ◽  
Author(s):  
Gabriela Andrea Cervantes Tellez ◽  
Sa'ad Hassan ◽  
R. Niall Tait ◽  
Pierre Berini ◽  
Reuven Gordon
Keyword(s):  
Refractive Index ◽  
Gold Film ◽  
Refractive Index Sensing ◽  
Nanohole Arrays ◽  
Atomically Flat

scholarly journals Plasmonic Refractive Index Sensors Based on One- and Two-Dimensional Gold Grating on a Gold Film

2020 ◽  
Vol 10 (4) ◽  
pp. 375-386 ◽  
Author(s):  
Jiankai Zhu ◽  
Xiangxian Wang ◽  
Yuan Wu ◽  
Yingwen Su ◽  
Tianxu Jia ◽  
...  
Keyword(s):  
Refractive Index ◽  
Composite Structure ◽  
Composite Structures ◽  
Gold Film ◽  
Grating Period ◽  
Two Dimensional ◽  
Period Range ◽  
Refractive Index Sensing ◽  
Resonance Modes ◽  
Comparison Results

Abstract In this paper, we propose two kinds of composite structures based on the one- and two-dimensional (1D&2D) gold grating on a gold film for plasmonic refractive index sensing. The resonance modes and sensing characteristics of the composite structures are numerically simulated by the finite-difference time-domain method. The composite structure of the 1D gold semi-cylinder grating and gold film is analyzed first, and the optimized parameters of the grating period are obtained. The sensitivity and figure of merit (FOM) can reach 660RIU/nm and 169RIU−1, respectively. Then, we replace the 1D grating with the 2D gold semi-sphere particles array and find that the 2D grating composite structure can excite strong surface plasmon resonance intensity in a wider period range. The sensitivity and FOM of the improved composite structure can reach 985RIU/nm and 298 RIU−1, respectively. At last, the comparison results of the sensing performance of the two structures are discussed. The proposed structures can be used for bio-chemical refractive index sensing.

Large-scale fabrication of plasmonic gold nanohole arrays for refractive index sensing at visible region

2012 ◽  
Vol 100 (25) ◽  
pp. 253101 ◽  
Author(s):  
Ke Cheng ◽  
Shujie Wang ◽  
Zhonggang Cui ◽  
Qianqian Li ◽  
Shuxi Dai ◽  
...  
Keyword(s):  
Refractive Index ◽  
Large Scale ◽  
Visible Region ◽  
Refractive Index Sensing ◽  
Nanohole Arrays

Enhanced extraordinary optical transmission and refractive-index sensing sensitivity in tapered plasmonic nanohole arrays

2019 ◽  
Vol 30 (33) ◽  
pp. 335201 ◽  
Author(s):  
Zhiquan Chen ◽  
Ping Li ◽  
Shi Zhang ◽  
Yiqin Chen ◽  
Peng Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Transmission ◽  
Extraordinary Optical Transmission ◽  
Refractive Index Sensing ◽  
Nanohole Arrays ◽  
Sensing Sensitivity

Optimizing the resolution of nanohole arrays in metal films for refractive-index sensing

2012 ◽  
Vol 109 (4) ◽  
pp. 775-780 ◽  
Author(s):  
Gabriela Andrea Cervantes Tellez ◽  
Aftab Ahmed ◽  
Reuven Gordon
Keyword(s):  
Refractive Index ◽  
Metal Films ◽  
Refractive Index Sensing ◽  
Nanohole Arrays

Three-band perfect absorber with high refractive index sensing based on active tunable Dirac semimetal

2021 ◽  
Author(s):  
Zhiyou Li ◽  
Zao Yi ◽  
Tinting Liu ◽  
Li Liu ◽  
Xifang Chen ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Gold Layer ◽  
Perfect Absorber ◽  
Refractive Index Sensing ◽  
Dirac Semimetal

In this paper, we designed a three-band narrowband perfect absorber based on Bulk Dirac semimetallic (BDS) metamaterials. The absorber consists of a hollow Dirac semimetallic layer above, a gold layer...

Sign in / Sign up

Export Citation Format

Share Document