scholarly journals Design A Sensor Mach Zender Interferometer for the Detection of Chemical and Organic Substances Present In Food and Health Drinks

2019 ◽  
Vol 8 (6) ◽  
pp. 4726-4730
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Model Simulation ◽  
Soft Drink ◽  
Cmos Technology ◽  
Experimental Program ◽  
Organic Substances ◽  
Highly Sensitive ◽  
Crystal Model ◽  
Small Change

This Paper includes the nano cavity implementation of the biosensors in the detection of any chemical analyte and pesticide. Chemical, organic substances or any biological analytes are deemed to be present in any food or soft drink. Detection of these kinds of analytes are the potential risk. Photonic Crystals are rapid and precise to reach the sky for the next future. The photonic crystal model simulation is performed using Beam Propagation technology, with change in the refractive index in one selected arm. Therefore the designed MZI acts as a bio sensing device to detect any kind of chemical, bio analyte and organic substances that are present in different food. MZI has many advantages in photonic crystal with the use of least instrument and ready to be compatible with CMOS technology. The experimental program is observed for minute change in refractive index, in this work. Mach Zender Interferometer shall behave as sensor for small change in refractive index of pesticide value and observed power and intensity thus will be accounted. Indicates that it is highly sensitive for the changes in refractive index and in turn it can differentiate between normal food which do not contain any chemical and pesticide present in food

scholarly journals Research on Dual-Channel and Dual-core Plasmonic Sensor Based Photonic Crystal Fiber for Refractive Index Sensing

2021 ◽  
Author(s):  
Shenxi Jiao ◽  
Xiaolei Ren ◽  
Hanrui Yang ◽  
Shibo Xu
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Biomedical Analysis ◽  
Crystal Fiber ◽  
Dual Channel ◽  
Highly Sensitive ◽  
Left And Right ◽  
Highly Sensitive Detection ◽  
Dual Core

Abstract A dual-core photonic crystal fiber (PCF) with dual-channel based surface plasmon resonance (SPR) sensor is designed. The silver and gold films are severally coated in the inner walls of two large ring detection channels to excite the plasmon modes, which can make the designed sensor achieve the dual-channel sensing. The effect of structure parameters on the sensing properties and loss spectrum is numerically analyzed by finite element method (FEM). When the analyte refractive index (RI) changes from 1.340 to 1.360, the average spectral sensitivities of 4280 and 3940 nm/RIU are obtained for the left and right channels, corresponding to the RI resolutions of 2.34×10-5 and 2.54×10-5 RIU, respectively. The simulation results suggest that the designed dual-channel sensor can realize highly sensitive detection of two analytes simultaneously, which has a wide application in the fields of biomedical analysis and environmental monitoring.

scholarly journals Numerical investigation of a highly sensitive plasmonic refractive index sensor utilizing hexagonal lattice of photonic crystal fiber

2020 ◽  
Vol 18 ◽  
pp. 103313 ◽  
Author(s):  
Md. Mahabubur Rahman ◽  
Md. Aslam Molla ◽  
Alok Kumar Paul ◽  
Md.A. Based ◽  
Md. Masud Rana ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Numerical Investigation ◽  
Photonic Crystal Fiber ◽  
Hexagonal Lattice ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Highly Sensitive

scholarly journals A Highly Sensitive Refractive Index Sensor Based on a V-Shaped Photonic Crystal Fiber with a High Refractive Index Range

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3782
Author(s):  
Xin Yan ◽  
Rao Fu ◽  
Tonglei Cheng ◽  
Shuguang Li
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Refractive Index ◽  
Refractive Index Sensor ◽  
Chemical Production ◽  
Refractive Index Sensitivity ◽  
Crystal Fiber ◽  
Sensing Applications ◽  
Highly Sensitive

This paper proposes a highly sensitive surface plasmon resonance (SPR) refractive index sensor based on the photonic crystal fiber (PCF). The optical properties of the PCF are investigated by modulating the refractive index of a liquid analyte. The finite element method (FEM) is used to calculate and analyze the PCF structure. After optimization, the fiber can achieve high linearity of 0.9931 and an average refractive index sensitivity of up to 14,771.4 nm/RIU over a refractive index range from 1.47 to 1.52, with the maximum wavelength sensitivity of 18,000.5 nm/RIU. The proposed structure can be used in various sensing applications, including biological monitoring, environmental monitoring, and chemical production with the modification and analysis of the proposed structure.

Highly sensitive miniature photonic crystal fiber refractive index sensor based on mode field excitation

2011 ◽  
Vol 36 (9) ◽  
pp. 1731 ◽  
Author(s):  
Wei Chang Wong ◽  
Chi Chiu Chan ◽  
Li Han Chen ◽  
Zhi Qiang Tou ◽  
Kam Chew Leong
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Mode Field ◽  
Highly Sensitive ◽  
Field Excitation
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