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

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Broadband design of a low-profile, circularly polarized crossed dipole antenna on an AMC surface 一种低姿态、圆极化交叉偶极子天线在AMC表面上的宽带设计
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948660
S. Ta, I. Park
{"title":"Broadband design of a low-profile, circularly polarized crossed dipole antenna on an AMC surface","authors":"S. Ta, I. Park","doi":"10.1109/METAMATERIALS.2014.6948660","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948660","url":null,"abstract":"A crossed dipole antenna is incorporated with an AMC surface to achieve low-profile and broadband characteristics. Interactions between the crossed dipole and the AMC surface are meticulously considered for optimum design. The antenna yields an impedance bandwidth of 18.8% for |S11| <; -10 dB and a 3-dB AR bandwidth of 10.9%.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"12 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":"128016447","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: 5
Non-plasmonic light trapping for thin film solar cells 薄膜太阳能电池的非等离子体光捕获
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948586
A. Shalin, C. Simovski, P. Voroshilov, P. Belov
{"title":"Non-plasmonic light trapping for thin film solar cells","authors":"A. Shalin, C. Simovski, P. Voroshilov, P. Belov","doi":"10.1109/METAMATERIALS.2014.6948586","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948586","url":null,"abstract":"We propose the enhancement of the photovoltaic absorption in thin-film solar cells using densely-packed arrays (not obviously regular) of non-absorbing submicron or micron-sized non-plasmonic spheres located on top of the cell. The spheres can decrease reflection forming an effective blooming layer but simultaneously they can suppress the transmission through the photovoltaic layer transforming the incident radiation into a set of collimated beams. The focusing of the light inside the photovoltaic layer allows enhanced useful absorption in it leading to the increment of the photovoltaic current. Every sphere focuses the incident wave separately - this mechanism does not require collective effects or resonances and is therefore takes place in a wide spectral range. Since the fabrication of such the coating is easy, our light-trapping structure may be cheaper than previously known light-trapping ones and perhaps even than flat anti-reflecting coatings.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"80 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":"126793264","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
Spatial sorting and routing of electromagnetic waves based on polarization control 基于极化控制的电磁波空间分选与路由
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948600
J. Carbonell, F. J. Rodríguez-Fortuño, A. Díaz-Rubio, A. Martínez, F. Cervera, J. Sánchez-Dehesa
{"title":"Spatial sorting and routing of electromagnetic waves based on polarization control","authors":"J. Carbonell, F. J. Rodríguez-Fortuño, A. Díaz-Rubio, A. Martínez, F. Cervera, J. Sánchez-Dehesa","doi":"10.1109/METAMATERIALS.2014.6948600","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948600","url":null,"abstract":"The polarization of a plane wave in free space is used to control the excitation and the directionality of a guided electromagnetic wave. Experiments are conducted using a two-dimensional waveguide made of two parallel aluminum plates which is externally excited. The upper plate, which has a linear array of holes, is externally illuminated by a polarized wave whose incident wavevector is contained within a plane perpendicular to the waveguide and containing the linear array. Surprisingly, measurements show that the propagation inside the waveguide is highly asymmetrical, and is controlled by the polarization of the incoming wave. This extraordinary phenomenon is explained in terms of a simple model involving a set of equivalent dipoles excited at the hole positions. This is a powerful tool to sort different polarizations of a free space beam to different propagation directions of guided electromagnetic waves.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"86 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":"115020519","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
Improving sensitivity and defying residual stress in MEMS bi-material terahertz sensors with metamaterial structures and self-leveling configuration 利用超材料结构和自流平结构提高MEMS双材料太赫兹传感器的灵敏度和抗残余应力
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948615
F. Alves, D. Grbovic, J. Arruda, R. Santos, G. Karunasiri
{"title":"Improving sensitivity and defying residual stress in MEMS bi-material terahertz sensors with metamaterial structures and self-leveling configuration","authors":"F. Alves, D. Grbovic, J. Arruda, R. Santos, G. Karunasiri","doi":"10.1109/METAMATERIALS.2014.6948615","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948615","url":null,"abstract":"In this paper we report on techniques to improve sensitivity and reduce the residual stress and its effects on THz MEMS bi-material sensors, using metamaterial structures and self-leveling configurations. Structural metamaterial films made of aluminum and silicon-rich silicon oxide bring the THz absorption close to 100% while making the absorption area relatively flat. Multi-folded bi-material and thermal insulating legs compensate the residual stress of the films, leveling the sensors, making them attractive to be used in THz imaging systems with external optical readout.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"61 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":"115210015","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
Flat THz leaky wave antennas: Analysis and experimental results 扁平太赫兹漏波天线:分析与实验结果
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948592
U. Beaskoetxea, M. Beruete, M. Zehar, A. Agrawal, Shuchang Liu, K. Blary, A. Chahadih, Xiang-Lei Han, M. Navarro‐Cía, D. Etayo, A. Nahata, T. Akalin, M. Sorolla Ayza
{"title":"Flat THz leaky wave antennas: Analysis and experimental results","authors":"U. Beaskoetxea, M. Beruete, M. Zehar, A. Agrawal, Shuchang Liu, K. Blary, A. Chahadih, Xiang-Lei Han, M. Navarro‐Cía, D. Etayo, A. Nahata, T. Akalin, M. Sorolla Ayza","doi":"10.1109/METAMATERIALS.2014.6948592","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948592","url":null,"abstract":"Here, two different THz radiating structures are analyzed, consisting both of a central slot surrounded by annular or straight corrugations. Concentrically grooved antenna presents a moderately high gain. Its radiation and temporal properties are analyzed both numerically and experimentally. For the second case, no appreciable differences in terms of radiation characteristics are observed when the grooves' profile is changed from square to triangular. Manufactured triangular grooves antenna shows good performance for the experimental measurements at 0.5THz. These results could be of interest for the development of new THz sources and detectors.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"9 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":"130565186","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
Field and potential based methods in complex media electromagnetics 复杂介质电磁学中基于场和势的方法
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948622
M. Havrilla
{"title":"Field and potential based methods in complex media electromagnetics","authors":"M. Havrilla","doi":"10.1109/METAMATERIALS.2014.6948622","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948622","url":null,"abstract":"An overview of field and potential based methods in complex media electromagnetics is presented. The overview includes 6-vector field and potential methods, a 4-vector field method and a scalar potential formulation. Advantages and limitations of each method are discussed and the applicability to various material tensor forms is highlighted. It is shown that, when applicable, the scalar potential formulation can offer significant simplification in the mathematical analysis and its compact notation can more clearly reveal the physical nature of the currents and corresponding fields. Scalar potentials are used to find the Green functions for a uniaxial parallel-plate waveguide to demonstrate the effectiveness of the technique. Only anisotropic media are considered here for the sake of brevity.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"7 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":"129666268","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
Metasurface synthesis using reduced susceptibility tensors 利用约磁化率张量的超表面合成
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948593
K. Achouri, M. A. Salem, C. Caloz
{"title":"Metasurface synthesis using reduced susceptibility tensors","authors":"K. Achouri, M. A. Salem, C. Caloz","doi":"10.1109/METAMATERIALS.2014.6948593","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948593","url":null,"abstract":"We propose a general method to synthesize metasurfaces based on a polarizability-susceptibility scattering approach. We show that a minimal set of four non-zero effective electric and magnetic susceptibility tensor components is sufficient to theoretically transform an incident electromagnetic wave into a great diversity of transmitted and/or reflected waves, where the metasurface can provide positive and negative refraction, focusing, polarization rotation, power absorption and orbital angular momentum manipulation.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"2 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":"122121120","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
Comparison of different numerical methods for quality factor calculation of nano and micro photonic cavities 纳米和微光子腔质量因子计算不同数值方法的比较
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948674
Alireza Taghizadeh, J. Moerk, Il-Sug Chung
{"title":"Comparison of different numerical methods for quality factor calculation of nano and micro photonic cavities","authors":"Alireza Taghizadeh, J. Moerk, Il-Sug Chung","doi":"10.1109/METAMATERIALS.2014.6948674","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948674","url":null,"abstract":"Four different numerical methods for calculating the quality factor and resonance wavelength of a nano or micro photonic cavity are compared. Good agreement was found for a wide range of quality factors. Advantages and limitations of the different methods are discussed.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"8 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":"134114866","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
Populating the large-wavevector realm: Bloch volume plasmon polaritons in hyperbolic and extremely anisotropic metamaterials 填充大波向量领域:双曲和极各向异性超材料中的布洛赫体积等离子体极化子
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948539
S. Zhukovsky, Viktoriia E. Babicheva, A. Orlov, A. Andryieuski, J. Sipe, A. Lavrinenko
{"title":"Populating the large-wavevector realm: Bloch volume plasmon polaritons in hyperbolic and extremely anisotropic metamaterials","authors":"S. Zhukovsky, Viktoriia E. Babicheva, A. Orlov, A. Andryieuski, J. Sipe, A. Lavrinenko","doi":"10.1109/METAMATERIALS.2014.6948539","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948539","url":null,"abstract":"Optics of hyperbolic metamaterials is revisited in terms of large-wavevector waves, evanescent in isotropic media but propagating in presence of extreme anisotropy. Identifying the physical nature of these waves as Bloch volume plasmon polaritons, we derive their existence conditions and outline the strategy for tailoring their properties in multiscale metamaterials.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"5 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":"134456248","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
Recent progress on FSS and extraordinary transmission analytical modeling FSS与超常传输分析模型的最新进展
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI: 10.1109/METAMATERIALS.2014.6948646
F. Mesa, R. Rodríguez-Berral, F. Medina
{"title":"Recent progress on FSS and extraordinary transmission analytical modeling","authors":"F. Mesa, R. Rodríguez-Berral, F. Medina","doi":"10.1109/METAMATERIALS.2014.6948646","DOIUrl":"https://doi.org/10.1109/METAMATERIALS.2014.6948646","url":null,"abstract":"The modeling of the scattering of plane waves by 1D/2D periodic distributions of planar scatterers has been a classical research topic in applied electromagnetism for decades. The authors of this paper initiated a research line in this field seven years ago, which was mostly motivated by our interaction with Prof. Mario Sorolla during his sabbatical leave in our lab. He introduced us to the topic of extraordinary transmission through sub-wavelength apertures in metal plates. This contribution presents our most recent advances on the subject, focused on the analytical circuit modeling of 1D mushroom-like structures and 2D arrays of rectangular patches/apertures under conical incidence illumination. Multi-modal equivalent networks are rigorously derived from the corresponding integral equations. The values of the electrical parameters of those networks are systematically obtained from reasonable estimations of the currents and fields.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"30 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":"134533312","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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