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2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics最新文献

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Ultrasensitive terahertz waveguide modulators using graphene metamaterials 使用石墨烯超材料的超灵敏太赫兹波导调制器
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948634
I. Khromova, A. Andryieuski, A. Lavrinenko
{"title":"Ultrasensitive terahertz waveguide modulators using graphene metamaterials","authors":"I. Khromova, A. Andryieuski, A. Lavrinenko","doi":"10.1109/METAMATERIALS.2014.6948634","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948634","url":null,"abstract":"We study terahertz-infrared electromagnetic properties of multilayer graphene-dielectric metamaterial and present novel waveguide-based devices: modulators with high modulation depth (> 38 dB at 0.07 eV graphene's Fermi energy change) or extreme sensitivity (modulation depth of > 13.2 dB at 0.001 eV Fermi energy variation), and tunable passband filters (10% central frequency shift per 0.004 eV Fermi energy change).","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117151026","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
An impedance formulation to determine specular reflection from metamaterial absorbers composed of capacitively loaded strip inclusions 一种确定由电容负载的条形内含物组成的超材料吸收器镜面反射的阻抗公式
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948607
A. E. Culhaoglu, A. Osipov
{"title":"An impedance formulation to determine specular reflection from metamaterial absorbers composed of capacitively loaded strip inclusions","authors":"A. E. Culhaoglu, A. Osipov","doi":"10.1109/METAMATERIALS.2014.6948607","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948607","url":null,"abstract":"An impedance approach to describe specular reflection of plane waves with general direction of incidence and polarization from metamaterial absorbers composed of a metasurface of sub-wavelength sized capacitively loaded strip inclusions on a grounded dielectric substrate is studied. The possibility to model the absorber as an impedance boundary with an effective surface impedance is examined and a simple method to determine the specular reflection coefficient at oblique incidence from the normal incidence reflection coefficient is proposed.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125302734","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: 3
Reconfigurable periodic structures and metamaterials: Enabling technologies, design, and applications from microwave to terahertz 可重构周期结构和超材料:从微波到太赫兹的使能技术、设计和应用
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948584
J. Perruisseau-Carrier
{"title":"Reconfigurable periodic structures and metamaterials: Enabling technologies, design, and applications from microwave to terahertz","authors":"J. Perruisseau-Carrier","doi":"10.1109/METAMATERIALS.2014.6948584","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948584","url":null,"abstract":"In this presentation we will review our recent activity related to the dynamic reconfiguration of periodic structures and their application. Different reconfigurable periodic `meta' transmission lines, reconfigurable uniform and a-periodic metasurfaces, will be discussed together with their applications. The proposed concepts are implemented at various frequencies from microwave to terahertz, using different technologies including semiconductors diodes, metal MicroElectroMechanical systems (metal-MEMS), Graphene, and dielectric electro-active polymers (DEAP).","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126737366","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
Linear to circular polarization converters based on self-complementary metasurfaces 基于自互补超表面的线圆偏振变换器
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948588
Juan D. Baena, A. Slobozhanyuk, J. D. Ortiz, P. A. Belov
{"title":"Linear to circular polarization converters based on self-complementary metasurfaces","authors":"Juan D. Baena, A. Slobozhanyuk, J. D. Ortiz, P. A. Belov","doi":"10.1109/METAMATERIALS.2014.6948588","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948588","url":null,"abstract":"In this work a technique for designing linear to circular polarization convertors is proposed. It is based on self-complementary metasurfaces graved on metal sheets. This kind of device can receive a linearly polarized wave and convert it into a circularly polarized wave. The main advantage over previous designs is the theoretical constancy of the phase difference between the transmission (or reflection) coefficients for two orthogonal linear polarizations, which is closely equal to 90° for any frequency.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122883987","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: 4
Anticonductors: Cloaks for uniform static currents 抗导体:均匀静电电流的屏蔽物
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948636
L. Kroon
{"title":"Anticonductors: Cloaks for uniform static currents","authors":"L. Kroon","doi":"10.1109/METAMATERIALS.2014.6948636","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948636","url":null,"abstract":"We show that uniform static currents can be perfectly cloaked by homogenous and isotropic conductivities. These structures, consisting of an electrical insulator coated with a conductive shell with specific geometry and relation to the background conductivity, can make a region of space inaccessible to electric impedance tomography.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122168806","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: 3
Unified approach to design linear and nonlinear acoustic metamaterials 线性和非线性声学超材料的统一设计方法
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948661
B. Popa, S. Cummer
{"title":"Unified approach to design linear and nonlinear acoustic metamaterials","authors":"B. Popa, S. Cummer","doi":"10.1109/METAMATERIALS.2014.6948661","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948661","url":null,"abstract":"We review a new approach to design active acoustic metamaterials that results in artificial media covering a large range of linear acoustic responses. We show how this method can be extended to obtain metamaterials having highly non-linear responses. We illustrate it experimentally by implementing a medium that produces second harmonics of higher intensity than the fundamental. This is an important property that can be leveraged in many non-linear applications, including the implementation of highly sub-wavelength unidirectional media capable of breaking the time-reversal symmetry.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129121091","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
Structural tricks for enhanced metamaterial properties 增强超材料性能的结构技巧
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948638
M. Lapine
{"title":"Structural tricks for enhanced metamaterial properties","authors":"M. Lapine","doi":"10.1109/METAMATERIALS.2014.6948638","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948638","url":null,"abstract":"This contribution presents an overview of novel structural approaches to the design of metamaterials, which enhance their performance by boosting emerging functionality. The two characteristic features of these approaches are hybrid assembly and finiteness effects, both providing unusual links between material properties and triggering unexpected effects. In a series of examples, the advantages of hybrid and mesoscopic designs will be demonstrated.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124180825","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
Nonlinear control of enhanced scattering in multi-layer nanowires 多层纳米线散射增强的非线性控制
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948650
A. Mirzaei, I. Shadrivov, N. Zharova, A. Miroshnichenko, Y. Kivshar
{"title":"Nonlinear control of enhanced scattering in multi-layer nanowires","authors":"A. Mirzaei, I. Shadrivov, N. Zharova, A. Miroshnichenko, Y. Kivshar","doi":"10.1109/METAMATERIALS.2014.6948650","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948650","url":null,"abstract":"We develop a novel semi-analytical method to analyse the effects of both linear and nonlinear scattering from multilayer cylindrical structures. We demonstrate the nonlinear control of scattering from a sample nanowire and observe the substantial enhancement of the superscattering due to a local field enhancement. We show that the results of our method match with the output of FDTD approach, is more robust and 105 times faster.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126269730","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
Polymer coated nanogold for tracing mobility of engineered nanoparticles in subsurface water 聚合物包覆纳米金用于跟踪工程纳米颗粒在地下水中的迁移率
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948582
B. Uthuppu, A. Fjordbøge, S. Fischer, M. Broholm, M. Jakobsen
{"title":"Polymer coated nanogold for tracing mobility of engineered nanoparticles in subsurface water","authors":"B. Uthuppu, A. Fjordbøge, S. Fischer, M. Broholm, M. Jakobsen","doi":"10.1109/METAMATERIALS.2014.6948582","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948582","url":null,"abstract":"Gold nanoparticles coated with amphiphilic block co-polymer PVP-VA are found to be extremely mobile in sand columns in laboratory based experiments. The ultra-stability obtained by such surface modification is also shown by diluting down to a concentration of 62.5 ppb in groundwater having other ions. Such a low level detection of particles is achieved by non-destructive simple UV-Vis spectroscopic technique equipped with liquid wave guide capillary cell (LWCC) units. These results propose the possibility of using surface engineered gold nanoparticles as model system for tracing the mobility of other engineered nanoparticles in the subsurface.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115795473","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
Permittivity and permeability for Floquet-Bloch space harmonics in infinite 1D magneto-dielectric periodic structures 无限一维磁介电周期结构中絮团-布洛赫空间谐波的介电常数和磁导率
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948598
O. Breinbjerg, A. Yaghjian
{"title":"Permittivity and permeability for Floquet-Bloch space harmonics in infinite 1D magneto-dielectric periodic structures","authors":"O. Breinbjerg, A. Yaghjian","doi":"10.1109/METAMATERIALS.2014.6948598","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948598","url":null,"abstract":"For an infinite 1D periodic structure with unit cells consisting of two planar slabs of magneto-dielectric materials, the electric field - as well as magnetic field, electric flux density, magnetic flux density, polarization, and magnetization - can be expressed as infinite series of Floquet-Bloch space harmonics. We discuss how space harmonic permittivity and permeability can be expressed in seemingly different though equivalent forms, and we investigate these parameters of the zeroeth order space harmonic for a particular 1D periodic structure that is based on a previously reported 3D periodic structure with unit cells containing a magneto-dielectric sphere.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133418200","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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