Design of a high figure of merit subwavelength grating based plasmonic sensor for detection of DNA hybridization

Optik ◽  
2015 ◽  
Vol 126 (20) ◽  
pp. 2747-2751 ◽  
Author(s):  
M. Tahmasebpour ◽  
M. Bahrami ◽  
A. Asgari
Keyword(s):  
Dna Hybridization ◽  
Figure Of Merit ◽  
Plasmonic Sensor ◽  
Subwavelength Grating ◽  
High Figure

Plasmonic sensor with high figure of merit based on differential polarization spectra of elliptical nanohole array

Nanoscale ◽  
2017 ◽  
Vol 9 (38) ◽  
pp. 14710-14721 ◽  
Author(s):  
Bin Ai ◽  
Pradip Basnet ◽  
Steven Larson ◽  
Whitney Ingram ◽  
Yiping Zhao
Keyword(s):  
Figure Of Merit ◽  
Transmission Spectra ◽  
Plasmonic Sensor ◽  
Nanohole Array ◽  
Plasmonic Sensors ◽  
High Figure ◽  
Polarization Spectra

The figure of merits (FOMs) of plasmonic sensors can be pushed to a new level (∼700 RIU−1) based on the differential polarization transmission spectra of elliptical nanoholes.

scholarly journals Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator

2017 ◽  
Author(s):  
Zhaojian Zhang ◽  
Junbo Yang ◽  
Xin He ◽  
Jingjing Zhang ◽  
Jie Huang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Figure Of Merit ◽  
Near Infrared ◽  
Optical Resolution ◽  
Infrared Region ◽  
Refractive Index Sensor ◽  
Plasmonic Sensor ◽  
Special Cases ◽  
Metal Insulator Metal ◽  
High Figure

A plasmonic refractive index (RI) sensor based on metal-insulator-metal (MIM) waveguide coupled with concentric double rings resonator (CDRR) is proposed and investigated numerically. Utilizing the novel supermodes of the CDRR, the FWHM of the resonant wavelength can be modulated, and a sensitivity of 1060 nm/RIU with high figure of merit (FOM) 203.8 is realized in the near-infrared region. The unordinary modes as well as the influence of structure parameters on the sensing performance are also discussed. Such plasmonic sensor with simple framework and high optical resolution could be applied to on-chip sensing systems and integrated optical circuits. Besides, the special cases of bio- sensing and triple rings are also discussed.

scholarly journals Plasmonic Sensor based on Microstructure PCF: Performance Analysis with Outside Detecting Approach

2021 ◽  
Author(s):  
Md. Biplob Hossain ◽  
Md. Nazmus Sakib ◽  
Md. Sanwar Hossain
Keyword(s):  
Figure Of Merit ◽  
High Sensitivity ◽  
The Finite Element Method ◽  
Plasmonic Sensor ◽  
Crystal Fiber ◽  
Polynomial Fit ◽  
Wavelength Sensitivity ◽  
High Figure ◽  
Performance Ability ◽  
The Cost

Abstract In this microarticle, we design a microstructure photonic crystal fiber (PCF) based external sensing surface plasmon resonance (SPR) sensor. The performance of the design is numerically evaluated incorporating the finite element method (FEM) with Perfectly Matched Layer (PML) boundary condition of scattering case. Modal analysis is performed using finer mesh anlaysis. At the optimized thickness (40nm) of chemically stable gold(Au) layer, the ever been maximum reported wavelength sensitivity (WS) and standard amplitude sensitivity (AS) are to 75,000 nm per RIU and 480 per RIU correspondingly. The sensor also exposed high polynomial fit (𝐑𝟐 = 𝟎. 𝟗𝟗) as well as high figure of merit (FoM) of 280.77 per RIU. Since very much high sensitivity, high detecting range and figure of merit, lowing the cost of fabrication, the proposed design can be a pleasant competitor in detection of the analyte refractive index (RI). At the last, to prove performance ability of our designed sensor all the performance parameter calculated results compare with the existing sensors.

scholarly journals Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator

2017 ◽  
Author(s):  
Zhaojian Zhang ◽  
Junbo Yang ◽  
Xin He ◽  
Jingjing Zhang ◽  
Jie Huang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Figure Of Merit ◽  
Near Infrared ◽  
Optical Resolution ◽  
Infrared Region ◽  
Refractive Index Sensor ◽  
Plasmonic Sensor ◽  
Metal Insulator Metal ◽  
High Figure ◽  
On Chip

A plasmonic refractive index (RI) sensor based on metal-insulator-metal (MIM) waveguide coupled with concentric double rings resonator (CDRR) is proposed and investigated numerically. Utilizing the novel supermodes of the CDRR, the FWHM of the resonant wavelength can be modulated, and a sensitivity of 1060 nm/RIU with high figure of merit (FOM) 203.8 is realized in the near-infrared region. The unordinary modes as well as the influence of structure parameters on the sensing performance are also discussed. Such plasmonic sensor with simple framework and high optical resolution could be applied to on-chip sensing systems and integrated optical circuits.

scholarly journals High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1164
Author(s):  
Gongli Xiao ◽  
Yanping Xu ◽  
Hongyan Yang ◽  
Zetao Ou ◽  
Jianyun Chen ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Figure Of Merit ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Multimode Interference ◽  
Geometrical Parameters ◽  
The Finite Element Method ◽  
Plasmonic Sensor ◽  
Coupled Mode ◽  
Plasmonic Nanosensor

Herein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element method, we numerically simulate the influences of geometrical parameters on the plasmonic sensor. Optimizing the structure parameters, we can achieve a high plasmonic sensor with the maximum sensitivity for 840 nm/RIUand figure of merit for 3.9 × 105. The research results provide a reliable theoretical basis for designing high sensitivity to the next generation plasmonic nanosensor.

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