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2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)最新文献

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Electromagnetically Coupled Au Nanoparticles 电磁耦合金纳米粒子
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552269
Ludmila Illyashenko-Raguin
{"title":"Electromagnetically Coupled Au Nanoparticles","authors":"Ludmila Illyashenko-Raguin","doi":"10.1109/DIPED53165.2021.9552269","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552269","url":null,"abstract":"The current intense interest in the properties of gold nanoparticles for their applications in antenna design, optical sensing, optical quality control, biotechnology and medical diagnostics is currently based on their resonantly enhanced scattering properties. When two nanoparticles are put close enough, it results in novel coupling induced optical properties, which is not possible to investigate with numerical simulation algorithms, developed for investigation of single particle. In this work the algorithm was developed to investigate dimer of nanoparticles. It was taken into account that two coupled nanoparticles may form a heretodimer, namely dimer of particles of different size, different shape, different materials. In addition, assuming that position and orientation of each nanoparticle are fixed, it was taken into account that parameters of the light source, such as source position, an excitation wavelength and a direction of illumination can vary. The spectral Boundary Integral Equation method was used, that is known to be a very useful and versatile tool to solve electromagnetic transmission problems. While this method includes analytical regularization based on singularity divison, it was found that regularization of those kernels, which are responsible for coupling of the nanoparticles, is not needed because they do not contain singularities. Developed algorithm allows calculations of scattering characteristics for coupled Au nanoparticles for various wavelength of their illumination. The set of numerical experiments lead to development of mathematical relations used as design rules, which qualitatively describe the plasmonic coupling between dimmers and asymmetric heterodimers as a function of orientation and interparticle distance.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122543710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Directivity of Planar Arrays of Arbitrarily Oriented Dipoles Located above Perfectly Conducting Plane 完美导电平面上任意取向偶极子平面阵列的指向性
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552279
N. Yeliseyeva, S. Berdnik, V. Katrich
{"title":"Directivity of Planar Arrays of Arbitrarily Oriented Dipoles Located above Perfectly Conducting Plane","authors":"N. Yeliseyeva, S. Berdnik, V. Katrich","doi":"10.1109/DIPED53165.2021.9552279","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552279","url":null,"abstract":"The effective algorithms for calculating the directive gains in the maximum radiation and corresponding radiation resistances of the planar non-equidistant arrays of the dipoles with separable variables amplitude-phase current distribution, located above an ideally conducting plane are created. There are used the analytical expressions obtained for the interference factors of the equidistant linear dipoles arrays located above an ideally conducting plane along the axes of the Cartesian coordinate system (CCS). For the planar dipoles equidistant arrays located above the screen, in cases of half-wave dipoles being parallel to CCS axes, the dependencies of directive gains and radiation resistances on distance between dipoles and a form of arrays are investigated and verified by software Feko.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128662611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/diped53165.2021.9552311
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引用次数: 0
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2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/diped53165.2021.9552260
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引用次数: 0
Integral Boundary Conditions in Studying a 2-D Propagation Problem of Monochromatic Waves Using the Finite Difference Method 用有限差分法研究单色波二维传播问题的积分边界条件
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552331
O. Rybin, S. Shulga, O. Bagatska
{"title":"Integral Boundary Conditions in Studying a 2-D Propagation Problem of Monochromatic Waves Using the Finite Difference Method","authors":"O. Rybin, S. Shulga, O. Bagatska","doi":"10.1109/DIPED53165.2021.9552331","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552331","url":null,"abstract":"In this study, a two-dimensional propagation problem for a TM-polarized monochromatic wave in a magnetodielectric inclusion situated in free space is considered using the Integral Equation Method (IEM). Using this method, the closed boundary value problem for defining the field inside the inclusion has stated in terms of non-local boundary conditions in the form of Fredholm Integral Equation of second kind. The obtained problem has solved numerically by means of the Finite Difference method.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"65 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129817682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Simple Approach to Determine the Buried Object under the Ground 一种确定地下埋藏物的简单方法
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552278
V. Tabatadze, K. Karaçuha, E. Karaçuha, R. Zaridze
{"title":"A Simple Approach to Determine the Buried Object under the Ground","authors":"V. Tabatadze, K. Karaçuha, E. Karaçuha, R. Zaridze","doi":"10.1109/DIPED53165.2021.9552278","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552278","url":null,"abstract":"The study aims to determine the buried dielectric object under the ground based on the frequency characteristics of the object. To achieve that goal, a minimum reflection angle - Brewster angle is found when there is no object in the region of interest. Then, the electromagnetic propagation with the obtained angle is employed when the object exists. The reflected field reveals the resonances of the object and by comparison, the physical properties of the unknown object can be predicted. To achieve this goal using computer simulation, the Method of Auxiliary Source (MAS) is employed.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132473462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Gaussian and Rational Approximation of Raman Gain Profile in TiO2 Doped Silica Fiber TiO2掺杂二氧化硅光纤拉曼增益谱的高斯和有理近似
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552290
G. Felinskyi, V. I. Grygoruk, I. Serdeha, O. Drobakhin, M. Andreev
{"title":"Gaussian and Rational Approximation of Raman Gain Profile in TiO2 Doped Silica Fiber","authors":"G. Felinskyi, V. I. Grygoruk, I. Serdeha, O. Drobakhin, M. Andreev","doi":"10.1109/DIPED53165.2021.9552290","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552290","url":null,"abstract":"The high accuracy fitting of the Raman gain profile is presented using two independent methods, namely the multimode Gaussian decomposition and rational approximation. The accurate approximation of experimental data was resulted in a simple analytic form and it is forming the reliable basis for calculating a lot of the mainly important practical parameters for many devices based on Raman photonics.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126989515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Analytical Properties of Wave Fields in the Problem of Optimal Antenna Synthesis 最优天线合成问题中波场的解析性质
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552309
Ivane Darsavelidze, Jemal Manjgaladze, M. Prishvin, R. Zaridze
{"title":"Analytical Properties of Wave Fields in the Problem of Optimal Antenna Synthesis","authors":"Ivane Darsavelidze, Jemal Manjgaladze, M. Prishvin, R. Zaridze","doi":"10.1109/DIPED53165.2021.9552309","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552309","url":null,"abstract":"An algorithm for optimal antenna synthesis using the Method of Auxiliary Sources is proposed. The physical meaning of the analyticity of the wave fields, which underlies the algorithm, as well as the method itself, is discussed. The physical meaning of reactive fields and the role of the singularities of the analytic continuation of a given far field in solving the problem are discussed. The results of numerical experiments are presented, confirming the theoretical ideas.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116176060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Biological Liquids by Metal Enhanced Fluorescence from Gold Nanoparticles 金纳米颗粒金属增强荧光分析生物液体
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552313
Ludmila Illyashenko-Raguin
{"title":"Analysis of Biological Liquids by Metal Enhanced Fluorescence from Gold Nanoparticles","authors":"Ludmila Illyashenko-Raguin","doi":"10.1109/DIPED53165.2021.9552313","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552313","url":null,"abstract":"Gold nanoparticles have high sensitivity to environmental changes. This property results from phenomena of surface plasmon resonances in gold nanoparticles. While surface plasmon resonance wavelength and resonantly enhanced scattering depend strongly on nanoparticle shape and size, they also depend on properties of external environment. Thus, slight change in dielectric permittivity of environment leads to shift of surface plasmon resonance wavelength. Since surface plasmon resonances of gold fall in visible part of electromagnetic spectrum, it is possible to notice the change of surface plasmon resonance wavelength due to the change of the color of resonantly enhanced scattered light. It is possible to analyze such a change based on calculations using Spectral Fourier-Galerkin Boundary Integral Equation method with analytical regularization based on Singularity Subtraction improved by Fast Fourier Transform, which is reliable tool to study scattering characteristics solving Electromagnetic Transmission Problem for gold nanoparticles. However, the dielectric permittivity of gold depends on excitation wavelength. Because of that, calculation of scattering characteristics over some range of wavelength must be done updating permittivity parameter at each step depending on the wavelength parameter. At the same time dielectric permittivities of biological liquids may be also wavelength dependent. In this work novel numerical simulation algorithm was developed to take into account complex valued wavelength dependent dielectric permittivities of gold and biological liquids for analysis of biological liquids by metal enhanced fluorescence from gold nanoparticles.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126074065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiple Scattering by an Impenetrable Cluster: Energy Transfer Process of the Scattered Sound 不可穿透团簇的多重散射:散射声的能量传递过程
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552318
Andreas Kalogeropoulos, N. Tsitsas
{"title":"Multiple Scattering by an Impenetrable Cluster: Energy Transfer Process of the Scattered Sound","authors":"Andreas Kalogeropoulos, N. Tsitsas","doi":"10.1109/DIPED53165.2021.9552318","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552318","url":null,"abstract":"A cluster of impenetrable scatterers is excited by a point source located inside a penetrable scatterer. The conservation of energy and the energy transfer process for this problem are considered. Relations of the scattering cross section with the complex sound intensity in the exciting scatterer are derived. A connection between the energy densities in the cluster's exterior and the reactive acoustic intensity through the exciting scatterer is established.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124978262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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