检索结果-南通市图书馆

Performance analysis of surface plasmon resonance sensor with high-order absentee layer

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2017年第12期26卷 317-323页

作者：孟庆卿赵鑫陈淑静林承友丁迎春陈朝阳 College of Science Beijing University of Chemical Technology Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and Technology China University of Geosciences

A surface plasmon resonance （SPR） sensor with a high-order absentee layer on the top of metallic film is proposed. The performance of the SPR sensor with NaCl, MgO, TiO2 or AlAs high-order absentee layer is analyzed theoretically. The results indicate that the sensitivity and the full width at half maximum of those SPR sensors decrease with the increasing of the order of absentee layer, but the variation of the figure of merit （FOM） depends on the refractive index of absentee layer. By improving the order of absentee layer with high-refractive-index, the FOM of the SPR sensor can be enhanced. The maximum value of FOM for the SPR sensor with high-order TiO2 （or AlAs） absentee layer is 1.059% （or 2.587%） higher than the one with one-order absentee layer. It is believed the proposed SPR sensor with high-order absentee layer will be helpful for developing the high-performance SPR sensors.

关键词： surface plasmon resonance sensor high-order absentee layer figure of merit

Resolution Enhancement of Optical surface plasmon resonance sensor Using Metamaterial

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Photonic sensors 2015年第4期5卷 330-338页

作者： Sarika PAL Y. K. PRAJAPATI J. P. SAINI V. SINGH Sarika Pal Department of Electronics & Communication Engineering KIET Ghaziabad (U.P.) India yogendra Kumar Prajapati Department of Electronics & Communication Engineering MNNIT Allahabad-211004 (U.P.) India jai Prakash Saini Department of Electronics & Communication Engineering BIET Jhansi-284128 (U.P.) India Vivek Singh Department of Physics Faculty of Science Banaras Hindu University Varanasi (U.P.) India

In this paper, we present and discuss a an optical surface plasmon resonance （SPR） path to extend the enhancement of the resolution of sensor. Basically, our approach is to combine bi-metamaterial layers to design the SPR sensor. The calculation shows that the proposed SPR sensor structure has a preference over the conventional SPR sensors and bimetallic SPR sensors since it gives a much sharper reflectance dip and can achieve considerable sensitivity improvement when compared to the recently reported investigations. The effects of the metamaterial permittivity, permeability, and thickness on the reflectance curve are studied. It is also seen that metamaterial layers improve the field of the proposed SPR structure, which may provide a novel tool to significantly enhance the sensitivity and resolution of the sensors.

关键词： surface plasmon resonance sensor metamaterials Fresnel equations reflectance

Detection of Leptospirosis Bacteria in Rodent Urine by surface plasmon resonance sensor Using Graphene

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonic sensors 2021年第3期11卷 305-313页

作者： Surjeet Raikwar Y.K.Prajapati D.K.Srivastava J.B.Maurya J.P.Saini Department of Electronics and Communication Engineering Bundelkhand Institute of Engineering and TechnologyJhansiUttar Pradesh284128India Department of Electronics and Communication Engineering Motilal Nehru National Institute of Technology AllahabadPrayagrajUttar Pradesh211004India Netaji Subhas University of Technology DwarkaNew Delhi110078India

In this paper, a graphene-coated surface plasmon resonance sensor is designed for the examination of Rodent urine which is responsible for Leptospirosis bacteria. Rodent urine is considered as sensing medium. Graphene surface is activated by phosphate-buffered saline solution for better attachment of Leptospirosis bacteria on its surface. Oliguria and Polyuria are the Rodent urine with high and low concentrations of Leptospirosis bacteria, respectively. The transfer matrix method is used for the formulation of reflection intensity of p-polarized light. The reflectance curves for angular interrogation are plotted and the results are obtained in terms of sensitivity, detection accuracy, and quality factor. The significantly high sensitivity and detection accuracy for Oliguria distinguishes it from Polyuria having lower sensitivity.

关键词： surface plasmon resonance sensor active metal layer Leptospirosis bacteria

Analysis of Coupled surface plasmon in LHM Mediated Dielectric Gap Multilayer Structure

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonic sensors 2020年第2期10卷 113-122页

作者： Mohammed BENDJEBBOUR Abdellatif CHERIFI Benamar BOUHAFS University of Tlemcen Faculty of SciencesTheoretical Physics LaboratoryTlemcen 13000Algeria

The purpose of this work is to investigate theoretically the characteristics of confined electromagnetic modes propagating along the interfaces of a multilayer *** one dimensional(1D)sensor is formed by stacking a left-handed material(LHM)layer between a SiO2-glass prism and a dielectric gap layer in contact with gold(Au).The results indicate that the total thickness of the LHM layer and dielectric gap,in optimum conditions,give the ability of tuning significantly the characteristics of the resonant modes correlated to surface plasmons(SPs)propagation along the interfaces of the designed *** considering two arrangements between LHM and Au,two opposite resonant behaviors observed in p-reflectance spectra are analyzed in the angular interrogation mode and discussed thoroughly.

关键词： Confined electromagnetic modes surface plasmon resonance sensor left-handed material

A High-Sensitivity and Broad-Range SPR Glucose sensor Based on Improved Glucose Sensitive Membranes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonic sensors 2019年第4期9卷 309-316页

作者： Yinquan YUAN Na YUAN Dejing GONG Minghong YANG National Engineering Laboratory for Fiber Optic Sensing Technology Wuhan University of TechnologyWuhan 430070China

An improved glucose sensitive membrane(GSM)is prepared by immobilizing glucose oxidase(GOD)onto a mixture of silica mesocellular foams(SiMCFs)and SiO2 nanoparticles(SiNPs)and then trapping it in a polyvinyl alcohol(PVA)*** membrane is coated onto a gold-glass sheet to create a surface plasmon resonance(SPR)sensor.A series of experiments are conducted to determine the optimized parameters of the proposed *** a GSM with a component ratio of SiMCFs:SiNPs=7:3(mass rate),the resonance angle of the sensor decreases from 68.57°to 63.36°,and the average sensitivity is 0.026°/(mg/dL)in a glucose concentration range of 0 mg/dL‒200 mg/*** a GSM with a component ratio of SiMCFs:SiNPs=5:5(mass rate),the resonance angle of the sensor decreases from 67.93°to 63.50°,and the sensitivity is 0.028°/(mg/dL)in a glucose concentration range of 0 mg/dL‒160 mg/*** data suggest that the sensor proposed in this study is more sensitive and has a broader measurement range compared with those reported in the literature to date.

关键词： surface plasmon resonance sensor glucose sensitive membrane immobilized enzyme silica mesocellular foams