A high-sensitivity sensor based on three-dimensional metal–insulator–metal racetrack resonator and application for hemoglobin detection

2018 ◽  
Vol 32 ◽  
pp. 28-34 ◽  
Author(s):  
Mohammad Reza Rakhshani ◽  
Mohammad Ali Mansouri-Birjandi
Keyword(s):  
Three Dimensional ◽  
High Sensitivity ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
Racetrack Resonator

scholarly journals Improved Refractive Index-Sensing Performance of Multimode Fano-Resonance-Based Metal-Insulator-Metal Nanostructures

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2097
Author(s):  
Yuan-Fong Chou Chau ◽  
Chung-Ting Chou Chao ◽  
Siti Zubaidah Binti Haji Jumat ◽  
Muhammad Raziq Rahimi Kooh ◽  
Roshan Thotagamuge ◽  
...  
Keyword(s):  
Refractive Index ◽  
Plasmon Resonance ◽  
Fano Resonance ◽  
High Sensitivity ◽  
Metal Nanostructures ◽  
Refractive Index Sensor ◽  
Metal Insulator ◽  
Wide Range ◽  
Metal Insulator Metal ◽  
Mode 2

This work proposed a multiple mode Fano resonance-based refractive index sensor with high sensitivity that is a rarely investigated structure. The designed device consists of a metal–insulator–metal (MIM) waveguide with two rectangular stubs side-coupled with an elliptical resonator embedded with an air path in the resonator and several metal defects set in the bus waveguide. We systematically studied three types of sensor structures employing the finite element method. Results show that the surface plasmon mode’s splitting is affected by the geometry of the sensor. We found that the transmittance dips and peaks can dramatically change by adding the dual air stubs, and the light–matter interaction can effectively enhance by embedding an air path in the resonator and the metal defects in the bus waveguide. The double air stubs and an air path contribute to the cavity plasmon resonance, and the metal defects facilitate the gap plasmon resonance in the proposed plasmonic sensor, resulting in remarkable characteristics compared with those of plasmonic sensors. The high sensitivity of 2600 nm/RIU and 1200 nm/RIU can simultaneously achieve in mode 1 and mode 2 of the proposed type 3 structure, which considerably raises the sensitivity by 216.67% for mode 1 and 133.33% for mode 2 compared to its regular counterpart, i.e., type 2 structure. The designed sensing structure can detect the material’s refractive index in a wide range of gas, liquids, and biomaterials (e.g., hemoglobin concentration).

scholarly journals Quantifying Fraction of Total Power Vs Wavelength of Ultra-Nanoscale Plasmonic Biosensor Device using Metal-Insulator-Metal-Metal Stack, Nano wells and Biotin Layer.

2019 ◽  
Vol 8 (2) ◽  
pp. 339-343
Keyword(s):  
Power Loss ◽  
Wave Length ◽  
Three Dimensional ◽  
Total Power ◽  
Metal Insulator ◽  
Functional Behavior ◽  
Metal Metal ◽  
Metal Insulator Metal ◽  
The Cost ◽  
Biosensor Device

An ultra-thin three-dimensional nanostructured biosensor device based on the Plasmonic principle is custom designed and analyzed for the Plasmonic properties. Here the FDTD (Finite Difference Time Domain) method is adopted as mathematical model using MEEP (MIT Electromagnetic Equation Propagation) open-source simulation tool. The four models are investigated and analyzed in the following order for respective Plasmonic properties of fraction of total power with respect to the wavelength for model-I MIMM layers (Metal-Insulator-Metal-Metal) with no nanostructure (AlAl2O3-Cr-Au), model-II MIMM layers with no nanostructure (Al- Al2O3-Cr-Au) and Biotin layer, model-III MIMM layers (AlAl2O3-Cr-Au) with 11 x 11 Nano well structures and model-IV MIMM layers with Nano well structures and Biotin layer (AlAl2O3-Cr-Au-Biotin). Here the structural and functional behavior of model I Vs Model II Vs Model III vs Model IV is simulated and the fraction of power is measured across the biosensor stack layer of MIMM for the wave length range quantified. In model II there is an approximate 5% power loss at all layers when compared to model I due to addition of the Biotin layer. In model IV there is an approximate 50 % power loss when compared to model III at Au layer, 60% power loss when compared to model III at Al layer and 67% of power loss at Cr + Al2O3 due to Biotin layer. These quantifications can be used to understand the model and the behavior of the biosensor under various conditions well before the fabrication, thereby reducing the cost and to comprehend the behavior of each material in terms of power dissipation so different material can be experimented.

scholarly journals Spr Based Biosensors Design for Detection of Different Skin Types Cancer

2018 ◽  
Vol 7 (4.36) ◽  
pp. 466
Author(s):  
Nandhini V.L ◽  
Dr. K. Suresh Babu ◽  
Moumita Manna
Keyword(s):  
Black Spot ◽  
High Sensitivity ◽  
Fdtd Simulation ◽  
Dark Skin ◽  
Metal Insulator ◽  
Melanoma Detection ◽  
Cancerous Cell ◽  
Metal Insulator Metal ◽  
Different Types ◽  
Very High

The progress in the field of bio-medical is increasing rapidly. SPR based melanoma provides the accuracy to detect the affected cancerous cell on any skin types. The growth in the small black spot in malignant and invasive melanoma of normal cell over affected cell is unpredictable to detect cancer in any skin types biosensing application sensors have by focusing on the graphene layer. The FDTD simulation guides the SPR to provide the configuration concentration on the Metal-Insulator-Metal (MIM) layer. Simulations are performed on different types of Asian, Caucasian and Dark skin on SPR based biosensor. The ultra-high sensitivity of biosensors can be calculated at a higher rate using R-soft tool and the readings are observed in optical meter. From the obtained simulation results, the sensitivity of the Asian skin is 8812nn/RIU, Caucasian skin is found to be 6064nm/RIU and Dark skin is 9290nm/RIU. The design is emphasized in a way that will show various application on melanoma detection with a sensitivity of 8055nm/RIU for the wavelength of 1550nm. It has been observed that for 1550 nm wavelength.The light speed at which the waveguide travels is up to 3*10-8 m/s. Finally, the sensitivity, accuracy and quality factor has been computed and found to be very high.   

Nanofocusing in a metal–insulator–metal gap plasmon waveguide with a three-dimensional linear taper

2012 ◽  
Vol 6 (12) ◽  
pp. 838-844 ◽  
Author(s):  
Hyuck Choo ◽  
Myung-Ki Kim ◽  
Matteo Staffaroni ◽  
Tae Joon Seok ◽  
Jeffrey Bokor ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Metal Insulator ◽  
Metal Insulator Metal

Low-Frequency Series-Resistance Analytical Modeling of Three-Dimensional Metal–Insulator–Metal Capacitors

2007 ◽  
Vol 54 (4) ◽  
pp. 742-751 ◽  
Author(s):  
Aurlie Bajolet ◽  
Raphal Clerc ◽  
G. Pananakakis ◽  
Dimitrios Tsamados ◽  
Eric Picollet ◽  
...  
Keyword(s):  
Analytical Modeling ◽  
Series Resistance ◽  
Three Dimensional ◽  
Low Frequency ◽  
Metal Insulator ◽  
Metal Insulator Metal
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