IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-06-10 DOI: 10.1007/s11468-023-01901-1

Ehsan Koushki, Ali Asghar Mowlavi, Seyed Taha Hoseini

{"title":"Application of Localized Surface Plasmon Resonance of Conjugated Gold Nanoparticles in Spectral Diagnosis of SARS-CoV-2: A Numerical Study","authors":"Ehsan Koushki, Ali Asghar Mowlavi, Seyed Taha Hoseini","doi":"10.1007/s11468-023-01901-1","DOIUrl":"10.1007/s11468-023-01901-1","url":null,"abstract":"<div><p>Severe respiratory syndrome COVID-19 (SARS-CoV-2) outbreak has became the most important global health issue, and simultaneous efforts to fast and low-cost diagnosis of this virus were performed by researchers. One of the most usual tests was colorimetric methods based on the change of color of gold nanoparticles in the presence of viral antibodies, antigens, and other biological agents. This spectral change can be due to the aggregation of the particles or the shift of localized surface plasmon resonance due to the electrical interactions of surface agents. It is known that surface agents could easily shift the absorption peak of metallic nanocolloids which is attributed to the localized surface plasmon resonance. Experimental diagnosis assays for colorimetric detection of SARS-CoV-2 using Au NPs were reviewed, and the shift of absorption peak was studied from the viewpoint of numerical analysis. Using the numerical method, the refractive index and real and imaginary parts of the effective relative permittivity of the viral biological shell around Au NPs were obtained. This model gives a quantitative description of colorimetric assays of the detection of SARS-CoV-2 using Au NPs.\u0000</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 5","pages":"1847 - 1855"},"PeriodicalIF":3.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11468-023-01901-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9706148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly-Miniaturized Nano-Plasmonic Filters Based on Stepped Impedance Resonators with Tunable Cut-Off Wavelengths 基于可调截止波长阶跃阻抗谐振器的高度小型化纳米等离子体滤波器

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-22 DOI: 10.1007/s11468-023-01878-x

Seyed Morteza Ebadi, Shiva Khani

{"title":"Highly-Miniaturized Nano-Plasmonic Filters Based on Stepped Impedance Resonators with Tunable Cut-Off Wavelengths","authors":"Seyed Morteza Ebadi, Shiva Khani","doi":"10.1007/s11468-023-01878-x","DOIUrl":"10.1007/s11468-023-01878-x","url":null,"abstract":"<div><p>This paper presents the design and numerical investigation of tunable, ultra-compact, and highly-efficient plasmonic filters based on stepped impedance resonators (SIRs). The proposed devices are realized in metal–insulator-metal (MIM) plasmonic waveguide systems and exhibit more degrees of freedom and high flexibility to design resonator-based devices, thanks to the SIRs. The principle of conventional SIRs is discussed in terms of equivalent circuit model and characteristic impedance. Among the three proposed plasmonic filters, one of them acts as a short-wavelength, while the other two nanostructures work as long-wavelength cut-off filters at near-infrared region (NIR) and telecom wavelengths. Simulation results are carried out by a finite element method (FEM)-based solver and indicate that the cut-off wavelengths of the proposed resonators found to be at 1187?nm, 1265?nm, and 999?nm, respectively, can be easily tuned by modulating their structural parameters. In addition to the mentioned remarkable properties of the designed structures including the size which are found to be 500?nm?×?310?nm, 350?nm?×?285?nm, and 210?nm?×?195?nm, respectively, the simple structures of the proposed topologies facilitate their fabrication process. Therefore, the suggested devices can contribute to the development of miniaturized, tunable, and efficient optical components for photonic integrated circuits (PICs) applications and in optical wireless communication systems.\u0000</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 4","pages":"1607 - 1618"},"PeriodicalIF":3.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11468-023-01878-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4875717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Wide-Angle LIWR Perfect Absorber with Double Dielectric Layer 双介电层宽带广角LIWR完美吸收器

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-19 DOI: 10.1007/s11468-023-01879-w

Xiao Lin Wang, Lu Zhu, Yuan Yuan Liu

引用次数: 0

Enhancing Photoresponse of GaAs-Based Photodetector by Plasmon Grating Structures 等离子体光栅结构增强gaas基光电探测器的光响应

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-18 DOI: 10.1007/s11468-023-01849-2

Zhengzhou Ma, Ping Tang, Jiancai Xue, Jinyun Zhou

引用次数: 0

Near- and Mid- Infrared Quintuple-Band Plasmonic Metamaterial Absorber 近红外和中红外五波段等离子体超材料吸收器

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-18 DOI: 10.1007/s11468-023-01881-2

Chung-Ting Chou Chao, Sy-Hann Chen, Hung Ji Huang, Yuan-Fong Chou Chau

引用次数: 1

Flexible Surface-enhanced Raman Scattering Strips Using Colloidal Ink of Gold-silver Alloyed Nanoparticles 用金-银合金纳米颗粒胶体墨水制备柔性表面增强拉曼散射带

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-17 DOI: 10.1007/s11468-023-01872-3

Honghao Tian, Youjian Qin, Hongmei Liu, Tian Li, Yuting Li, Xiaohui Fang, Xinping Zhang

{"title":"Flexible Surface-enhanced Raman Scattering Strips Using Colloidal Ink of Gold-silver Alloyed Nanoparticles","authors":"Honghao Tian, Youjian Qin, Hongmei Liu, Tian Li, Yuting Li, Xiaohui Fang, Xinping Zhang","doi":"10.1007/s11468-023-01872-3","DOIUrl":"10.1007/s11468-023-01872-3","url":null,"abstract":"<div><p>Surface-enhanced Raman scattering (SERS) has been used for trace detection at the single-molecule level. The low-cost preparation of high-performance test strips has enabled the development of SERS techniques. In this study, oil-dispersible metal or alloy nanoparticles prepared by the Brust-Schiffrin method were used as \"inks\" in a ballpoint pen to handwrite SERS test strips on polytetrafluoroethylene (PTFE) membranes. Because of the good PTFE lipophilicity, the flexible substrates had good uniformity. The large laser damage threshold of the PTFE membrane also enabled increased laser powers for SERS testing. The Au and Ag alloy nanoparticle inks exhibited increased performance with larger proportions of Ag. The Au<sub>1</sub>Ag<sub>8</sub> nanoparticles had the best properties, and those strips could detect 10<sup>-11</sup>-M Rhodamine 6G dyes in a 10-μL volume with an enhancement factor of 5.4×10<sup>8</sup>. The SERS strips were used to demonstrate detection of malachite green, the use of which is prohibited in aquaculture and fish tanks.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 4","pages":"1553 - 1559"},"PeriodicalIF":3.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4695455","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

Ultra-Wideband RCS Reduction Achieved by a Coding Phase Gradient Metasurface 用编码相位梯度超表面实现超宽带RCS降频

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-17 DOI: 10.1007/s11468-023-01876-z

Bao-qin Lin, Wen-zhun Huang, Jian-xin Guo, Yan-Wen Wang, Bai-gang Huang, Rui Zhu

{"title":"Ultra-Wideband RCS Reduction Achieved by a Coding Phase Gradient Metasurface","authors":"Bao-qin Lin, Wen-zhun Huang, Jian-xin Guo, Yan-Wen Wang, Bai-gang Huang, Rui Zhu","doi":"10.1007/s11468-023-01876-z","DOIUrl":"10.1007/s11468-023-01876-z","url":null,"abstract":"<div><p>In this paper, to achieve ultra-wideband radar cross section (RCS) reduction, a coding phase gradient metasurface (CPGM) is proposed by using Pancharatnam-Berry (P-B) phase. The CPGM is composed of eight types of CPGM elements, and a series of phase gradients with different directions or starting-values will be introduced in these types of CPGM elements under the same EM-wave incidence, so it can not only achieve anomalous reflection to reduce its specular RCS but also reduce the maximum bi-static RCS due to phase cancelation. The simulation results demonstrate that the CPGM has an excellent performance in RCS reduction, compared with a pure metallic plate with the same size, its specular RCS under normal incidence with arbitrary polarization can be reduced more than 10?dB in the ultra-wide frequency band of 8.8–34.8?GHz with a relative bandwidth of 119.3%, and its maximum bi-static RCS can also be reduced effectively in the ultra-wide frequency band; moreover, when the incident angle is increased to 45°, the RCS reduction can still be achieved in an ultra-wide frequency band. Finally, an effective experimental verification is carried out.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 4","pages":"1561 - 1569"},"PeriodicalIF":3.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4696745","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

Highly Sensitive and Flexible GFF/Au/AgNPs SERS Substrate and Its Application for Rapid Hazardous Residues Detection on Food 高灵敏柔性GFF/Au/AgNPs SERS底物及其在食品有害残留快速检测中的应用

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-16 DOI: 10.1007/s11468-023-01864-3

Ciyong Gu, Delong Meng, Xiaolei Yu, Lin Li, Zhimin Zhao

{"title":"Highly Sensitive and Flexible GFF/Au/AgNPs SERS Substrate and Its Application for Rapid Hazardous Residues Detection on Food","authors":"Ciyong Gu, Delong Meng, Xiaolei Yu, Lin Li, Zhimin Zhao","doi":"10.1007/s11468-023-01864-3","DOIUrl":"10.1007/s11468-023-01864-3","url":null,"abstract":"<div><p>In this work, we have developed a highly sensitive surface enhanced Raman scattering (SERS) substrate consisting of gold (Au) and silver (Ag) nanoparticles (NPs) loaded on glass fiber filter paper (GFF) by a two-step process of magnetron sputtering and sessile drop method. To test the SERS properties of the substrate, crystal violet (CV) was selected as the Raman probes. The influence of the amounts of NPs on the SERS signals was studied using field-emission scanning electron microscopy and theoretical methods. It is demonstrated that the hybrid structure of optimal GFF/Au/AgNPs has a much stronger SERS enhancement than that of GFF substrate coated only with AuNPs, which can provide a SERS enhancement factor (EF) of 3.52?×?10<sup>8</sup>, and the limit of detection is down to 10<sup>?14</sup>?M for CV. Moreover, the Raman signal of the CV on the GFF/Au/Ag substrate presented good homogeneity, reproducibility and stability, also reproduce the SERS spectra after 15?days. Furthermore, the GFF/Au/AgNPs substrate was applied for the rapid on-site testing and identification of malachite green (MG) residual on contaminated fish scale, and the limit of detection was approximately 10<sup>?7</sup>?M. Flexible GFF substrate with Au/Ag bimetallic hybrid structure has great potential in rapid sampling of hazardous ingredients on real samples and in SERS applications.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 4","pages":"1541 - 1552"},"PeriodicalIF":3.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4657301","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

Splitting of the Effective Rabi Frequencies for the Coherent Plasmonic Fields in the Semiconductor Quantum Dot–Metal Nanospheres Hybrids 半导体量子点-金属纳米球杂化中相干等离子体场有效拉比频率的分裂

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-13 DOI: 10.1007/s11468-023-01858-1

Somia Abd-Elnabi, Hagar M. Ali

引用次数: 0

A Highly Sensitive Terahertz Waveguide Plasmonic Sensor for Ethanol Sensing 用于乙醇传感的高灵敏度太赫兹波导等离子体传感器

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2023-05-12 DOI: 10.1007/s11468-023-01875-0

A. H. M. Iftekharul Ferdous, Benjir Newaz Sathi, Md. Shahareaj Islam, Diponkar Kundu, Twana Mohammed Kak Anwer, Shaik Hasane Ahammad, Md. Amzad Hossain, Mahmoud M. A. Eid, Ahmed Nabih Zaki Rashed

{"title":"A Highly Sensitive Terahertz Waveguide Plasmonic Sensor for Ethanol Sensing","authors":"A. H. M. Iftekharul Ferdous, Benjir Newaz Sathi, Md. Shahareaj Islam, Diponkar Kundu, Twana Mohammed Kak Anwer, Shaik Hasane Ahammad, Md. Amzad Hossain, Mahmoud M. A. Eid, Ahmed Nabih Zaki Rashed","doi":"10.1007/s11468-023-01875-0","DOIUrl":"10.1007/s11468-023-01875-0","url":null,"abstract":"<div><p>This paper proposes and numerically investigates a spider-web-like cladding photonic crystal fiber with a hexagonal hollow core–based ethanol sensor utilizing terahertz (THz) signal. The finite element method (FEM) technique is applied to examine sensing and guiding characteristics of this sensor by using the COMSOL Multiphysics software. The sensor outperformed other ongoing studies by achieving a high relative sensitivity of 97.09% and an incredibly low confinement loss of 3.68?×?10<sup>?12</sup>?dB/m at the optimal frequency. In addition, the sensor has a large effective area of 6.458?×?10<sup>?08</sup> m<sup>2</sup> and spot size with a tiny effective material loss of 0.0051?cm<sup>?1</sup>. This study represents the huge hexagonal core and a set of rectangular air holes in spider-shaped cladding to simplify manufacture. Future applications for identifying ethanol may greatly benefit from its exceptional sensitivity and guiding qualities.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"18 4","pages":"1511 - 1519"},"PeriodicalIF":3.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11468-023-01875-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4504209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

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