Plasmonics最新文献_第9页

Design and Analysis of a Plasmonic Metasurface-Based Graphene Sensor for Highly Sensitive and Label-Free Detection of COVID-19 Biomarkers 设计和分析基于等离子体元表面的石墨烯传感器，实现 COVID-19 生物标记物的高灵敏度和无标记检测

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-27 DOI: 10.1007/s11468-024-02442-x

Nagarajan P., Jacob Wekalao, Ashokkumar N., Shobhit K. Patel

{"title":"Design and Analysis of a Plasmonic Metasurface-Based Graphene Sensor for Highly Sensitive and Label-Free Detection of COVID-19 Biomarkers","authors":"Nagarajan P., Jacob Wekalao, Ashokkumar N., Shobhit K. Patel","doi":"10.1007/s11468-024-02442-x","DOIUrl":"https://doi.org/10.1007/s11468-024-02442-x","url":null,"abstract":"This research presents plasmonic metasurface-based graphene sensor for highly sensitive and label-free detection of COVID-19 biomarkers. The proposed sensor structure integrates graphene with specially engineered metasurface resonators for the detection of SARS-CoV-2 biomarkers through analysis of terahertz spectroscopic signatures. Finite element method simulations were performed to optimize the sensor design, including resonator dimensions, angle of incidence, and graphene chemical potential. The optimized sensor demonstrates a maximum sensitivity of 400 GHzRIU−1, a figure of merit of 0.224 RIU−1, a quality factor of 7.942, and a detection limit of 0.465 RIU. Electric field distribution analysis provides insights into the sensor’s plasmonic modes and light-matter interactions. The sensor also shows potential for 2-bit encoding applications. Compared to existing designs, the proposed sensor exhibits superior performance in key metrics like sensitivity among others. This plasmonic metasurface approach presents a promising platform for rapid, sensitive, and specific detection of SARS-CoV-2 and other viral biomarkers, with potential applications in advanced diagnostic tools and public health monitoring.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Analysis of a Terahertz Metasurface-Based Refractive Index Sensor for Hemoglobin Detection With Behaviour Prediction Using Polynomial Regression 设计和分析基于太赫兹元表面的折射率传感器，用于检测血红蛋白并利用多项式回归进行行为预测

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-27 DOI: 10.1007/s11468-024-02445-8

Jacob Wekalao, Ngaira Mandela, Jonas Muheki, Adeeb Zaid

{"title":"Design and Analysis of a Terahertz Metasurface-Based Refractive Index Sensor for Hemoglobin Detection With Behaviour Prediction Using Polynomial Regression","authors":"Jacob Wekalao, Ngaira Mandela, Jonas Muheki, Adeeb Zaid","doi":"10.1007/s11468-024-02445-8","DOIUrl":"https://doi.org/10.1007/s11468-024-02445-8","url":null,"abstract":"This study presents the design and analysis of a novel terahertz metasurface-based refractive index sensor for hemoglobin detection. The proposed sensor incorporates advanced materials including graphene, MXenes, SrTiO3 and gold on a SiO2 substrate. Comprehensive parametric optimization was conducted using COMSOL Multiphysics to enhance the sensor's sensitivity and overall performance. The optimized design demonstrated high sensitivity to hemoglobin concentration changes, with distinct transmittance responses observed for concentrations ranging from 10 g/l to 40 g/l. Electric field intensity analysis verified the sensor's transmission characteristics across different frequencies. Performance metrics such maximum sensitivity of 1000GHzRIU-1, minimum FOM of 2 RIU-1, minimum detection limit of 0.044 among other performance parameters which demonstrates exemplary results. Furthermore, polynomial regression models were employed to predict the sensor's behaviour under various parametric conditions, achieving maximum R2 scores between 0.86 and 1 across different test cases.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141786201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Core–Shell Plasmonic Nanostructures for Hyperthermia of Cancer and Tumor Cells 用于癌症和肿瘤细胞热疗的核壳质子纳米结构

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-27 DOI: 10.1007/s11468-024-02435-w

Vahid Rajabpour, Karim Abbasian, Mehmet Ertugrul

{"title":"Core–Shell Plasmonic Nanostructures for Hyperthermia of Cancer and Tumor Cells","authors":"Vahid Rajabpour, Karim Abbasian, Mehmet Ertugrul","doi":"10.1007/s11468-024-02435-w","DOIUrl":"https://doi.org/10.1007/s11468-024-02435-w","url":null,"abstract":"Plasmonic nanostructures continue to be the most promising alternative to hyperthermia treatment of cancer or tumors by focusing the light locally. Absorption and scattering cross-sections of 48 nanorods encompassing silver and palladium as core and gold and platinum as coating with four different aspect ratios and three different coating thicknesses were examined in an aqueous solution with finite-element method (FEM). According to the highest value of photothermal conversion efficiency (PCE) in each bimetallic compound, three Au@Ag, Pt@Ag, and Au@Pd nanorods, with aspect ratios of 4, 4, and 5, respectively; and all with a coating thickness of 1 nm; were chosen as the best ones named “A,” “B,” and “C”. Each nanorod irradiated by continuous wave (CW) laser radiation with 1 mW·μm−2 intensity at the LSPR wavelength for 200 ns, the temperature of the nanorods increased from 37 to 82.6, 46.34, and 44.33 °C, respectively. To robustly control the temperature in time and locally, the irradiation intensity of the “A” was decreased to 0.5 mW·μm−2, that its ambient temperature increased by 45 °C at a distance of 20 nm, which can selectively cause irreparable damage to the cancer cells. In addition, the nanorods were irradiated by pulsed laser for 200 ns periods. The results show that the bimetallic nanoparticles can convert light into heat locally.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detailed Analysis of Size and Shape of TiN Nanostructure on Refractive Index-Based Sensor 基于折射率的传感器上 TiN 纳米结构的尺寸和形状的详细分析

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-26 DOI: 10.1007/s11468-024-02444-9

Yashika, Jyoti Katyal

引用次数: 0

Sensitivity Enhancement of Franckeite-Based Surface Plasmon Resonance Sensors Using A Bimetallic Structure 利用双金属结构提高基于方镁石的表面等离子体共振传感器的灵敏度

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-25 DOI: 10.1007/s11468-024-02432-z

Rajeev Kumar, Shivam Singh, Partha Sarkar, Lalit Garia, Varun Kumar Kakar, Abdullah Saad Alsubaie, Amrindra Pal

引用次数: 0

Feasibility of All Single-Qubit Gates with Four InGaAs Quantum Dots Coupled to Two Silver Nanowires 利用耦合到两条银纳米线的四个 InGaAs 量子点实现所有单ubit 栅极的可行性

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-24 DOI: 10.1007/s11468-024-02415-0

Chol-Min Kim, Nam-Chol Kim, Myong-Chol Ko, Ju-Song Ryom, Su-Ryon Ri

引用次数: 0

Design and Performance of Ultrathin MXene Nano-Absorber for Visible and Infrared Spectra 用于可见光和红外光谱的超薄 MXene 纳米吸收器的设计与性能

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-24 DOI: 10.1007/s11468-024-02428-9

Zhipeng Gao

引用次数: 0

Synthesis and Characterization of Nickel Ferrite Nanostructures by DC Reactive Sputtering Technique Using New Target Configuration 使用新靶配置的直流反应溅射技术合成镍铁氧体纳米结构并对其进行表征

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-23 DOI: 10.1007/s11468-024-02439-6

Noor E. Naji, Ali A. Aljubouri, Raid A. Ismail

引用次数: 0

Surface Plasmon Polaritons in Graphene Material–Based Reconfigurable Antennas for Advanced Environmental Monitoring Applications 石墨烯材料中的表面等离子体极性子--基于可重构天线的先进环境监测应用

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-23 DOI: 10.1007/s11468-024-02422-1

Rajesh Yadav, Harsha Mann, V. S. Pandey, Preeti Verma

{"title":"Surface Plasmon Polaritons in Graphene Material–Based Reconfigurable Antennas for Advanced Environmental Monitoring Applications","authors":"Rajesh Yadav, Harsha Mann, V. S. Pandey, Preeti Verma","doi":"10.1007/s11468-024-02422-1","DOIUrl":"https://doi.org/10.1007/s11468-024-02422-1","url":null,"abstract":"This paper presents surface plasmon polaritons in graphene material–based reconfigurable antennae for advanced environmental monitoring applications. The antenna consists of multiple elements which are made up of graphene material. It enhances the antenna’s performance, enabling tunability and adaptability in response to environmental conditions. Additionally, the defective ground structure has been incorporated into the antenna characteristics that contribute to improving the radiation patterns and frequency selectivity. The proposed antenna is excited through a silver nanostrip feedline coupled through vias to the radiated elements. The antenna is resonating at 5.046 THz, with a bandwidth of 7.611 (mathbf{%}) (5.21–4.828 THz). The reconfigurable antenna provides an acceptable limit of directivity along with high efficiency. Here, the reconfigurability is obtained by disabling and enabling the topmost radiating elements systematically. Moreover, the resonant frequency can be adjusted by modifying the external biasing voltage applied to the graphene material. The antenna generates the higher-order ({mathrm{TM}}_{65}) mode. Furthermore, a parametric analysis has been conducted to achieve impedance matching and antenna tuning by changing the external bias voltage applied to graphene elements. The proposed reconfigurable antenna system demonstrates promising capabilities for versatile environmental sensing applications including monitoring parameters such as temperature, humidity, and pollutant levels.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Broadband D-Shaped Photonic Crystal Fiber Sensor via Surface Plasmon Resonance for Different Analytes with a Large Range of Refractive Index Detection 通过表面等离子体共振实现的宽带 D 形光子晶体光纤传感器，可用于不同分析物的大范围折射率检测

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-07-22 DOI: 10.1007/s11468-024-02425-y

Deyang Zhou, Fang Ren, Yidan Li, Yingjuan Ci, Jianping Wang

{"title":"A Broadband D-Shaped Photonic Crystal Fiber Sensor via Surface Plasmon Resonance for Different Analytes with a Large Range of Refractive Index Detection","authors":"Deyang Zhou, Fang Ren, Yidan Li, Yingjuan Ci, Jianping Wang","doi":"10.1007/s11468-024-02425-y","DOIUrl":"https://doi.org/10.1007/s11468-024-02425-y","url":null,"abstract":"A D-shaped photonic crystal fiber (PCF) refractive index (RI) sensor based on surface plasmon resonance (SPR) is proposed. We used an open-ring channel coated with a gold film to excite the plasmonic modes. The coupling properties and sensing performance of this structure are analyzed using the finite element method. Different from the related D-shaped PCF refractive sensor, the sensing performance of different positions of analyte placement is investigated. Through simulation analysis by different positions of analyte placement, it is revealed different RI detection. When the analyte is distributed across the entire outer ring region, the sensor exhibits the RI detection range from 1.2 to 1.34. The sensor achieves a maximum spectral sensitivity of 2000 nm/RIU and a resolution of 2 × 10−3 RIU. When the analyte is confined exclusively to the upper aperture, the sensor’s RI detection range extends from 1.33 to 1.46. The simulated results show that the proposed sensor achieves a maximum spectral sensitivity of 5600 nm/RIU and a resolution of 8 × 10−4 RIU. Regardless of which of the two positions the analyte is placed, the proposed D-shaped photonic crystal fiber (D-PCF) sensor has a broad operating wavelength. The excellent sensing performance makes the proposed SPR sensor a competitive candidate in RI detection applications.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0