Metamaterials最新文献_第5页

Employment of metamaterial cloaks to enhance the resolution of near-field scanning optical microscopy systems based on aperture tips 利用超材料斗篷提高基于孔径尖端的近场扫描光学显微镜系统的分辨率

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.07.002

Filiberto Bilotti, Francesco Pierini, Lucio Vegni

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引用次数: 10

High-order coplanar waveguide (CPW) filters implemented by means of open split ring resonators (OSRRs) and open complementary split ring resonators (OCSRRs) 利用开裂环谐振器(osrs)和开补裂环谐振器(OCSRRs)实现的高阶共面波导(CPW)滤波器

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.03.002

Miguel Durán-Sindreu, Paris Vélez, Jordi Bonache, Ferran Martín

引用次数: 10

Multipole analysis of meta-atoms 元原子的多极分析

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.03.003

Stefan Mühlig, Christoph Menzel, Carsten Rockstuhl, Falk Lederer

引用次数: 139

Comparative analysis of the transfer function of closed and open split-ring metamaterial slab lenses 闭式和开式裂环超材料平板透镜传递函数的比较分析

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.07.001

J.M. Algarín, M.J. Freire, R. Marqués

引用次数: 1

Direct laser writing of microoptical structures using a Ge-containing hybrid material 用含锗杂化材料直接激光书写微光学结构

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.04.002

Mangirdas Malinauskas , Arūnė Gaidukevičiūtė , Vytautas Purlys , Albertas Žukauskas , Ioanna Sakellari , Elmina Kabouraki , Alessandro Candiani , David Gray , Stavros Pissadakis , Roaldas Gadonas , Algis Piskarskas , Costas Fotakis , Maria Vamvakaki , Maria Farsari

{"title":"Direct laser writing of microoptical structures using a Ge-containing hybrid material","authors":"Mangirdas Malinauskas , Arūnė Gaidukevičiūtė , Vytautas Purlys , Albertas Žukauskas , Ioanna Sakellari , Elmina Kabouraki , Alessandro Candiani , David Gray , Stavros Pissadakis , Roaldas Gadonas , Algis Piskarskas , Costas Fotakis , Maria Vamvakaki , Maria Farsari","doi":"10.1016/j.metmat.2011.04.002","DOIUrl":"10.1016/j.metmat.2011.04.002","url":null,"abstract":"<div><p>We present our investigations into the direct laser writing of a novel germanium-containing hybrid sol–gel photosensitive material for optical applications at micro scale. We employ this material in the fabrication of photonic micro-structures, such as aspheric lenses and prisms; these are well-shaped and provided good optical performance. The material exhibits good transparency and structurability, and three-dimensional structures with sub-100<!--> <span>nm resolution are achieved. We demonstrate the suitability of the direct laser writing method for the rapid production of custom shaped microoptical components. Since germanium glasses are widely used in fiber optics, the combination of direct laser writing with this specially designed, functional material opens an interesting way in fabricating structures for controlling light flow.</span></p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":"5 2","pages":"Pages 135-140"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2011.04.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80149143","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: 21

Homogenization of tensor TL metamaterials 张量TL超材料的均匀化

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.06.002

Gurkan Gok, Anthony Grbic

引用次数: 12

Symmetry properties of electromagnetic planar arrays: Long-wave approximation and normal incidence 电磁平面阵列的对称性:长波近似与法向入射

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.04.003

Victor Dmitriev

引用次数: 19

Super imaging with a plasmonic metamaterial: Role of aperture shape 等离子体超材料的超成像:孔径形状的作用

Metamaterials Pub Date : 2011-06-01 DOI: 10.1016/j.metmat.2011.03.005

Shiyi Xiao, Qiong He, Xueqing Huang, Lei Zhou

引用次数: 14

Near-field image transfer by magneto-inductive arrays: A modal perspective 磁感应阵列的近场图像传输:模态视角

Metamaterials Pub Date : 2011-04-01 DOI: 10.1016/j.metmat.2010.11.002

R.R.A. Syms, E. Shamonina, L. Solymar

{"title":"Near-field image transfer by magneto-inductive arrays: A modal perspective","authors":"R.R.A. Syms, E. Shamonina, L. Solymar","doi":"10.1016/j.metmat.2010.11.002","DOIUrl":"10.1016/j.metmat.2010.11.002","url":null,"abstract":"<div><p>A simple model of near-field pixel-to-pixel image transfer using magneto-inductive arrays is presented. The response of <em>N</em>-dimensional rectangular arrays is first found as an excitation of eigenmodes. This analytical method involves approximating the effect of sources and detectors, and replaces the problem of solving large numbers of simultaneous equations with that of evaluating a sum. Expressions are given for the modal expansion coefficients, and in the low-loss case it is shown that the coefficient values depend only on the difference in reciprocal frequency space of the operating frequency from the resonant frequency of each mode. Analytic expressions are then derived for quasi-optical quantities such as the spatial frequency response, point-spread function and resolving power, and their implications for imaging fidelity and resolution are examined for arrays of different dimension. The results show clearly that there can be no useful image transfer for in-band excitation. Out-of-band excitation allows image transfer. Provided the array is larger than the expected image by at least the size of the point spread function, the effect of the array boundaries may be ignored and imaging is determined purely by the properties of the medium. However, there is a tradeoff between fidelity and throughput, and good imaging performance using thick slabs depends on careful choice of the operating frequency. The approximate analytic method is verified by comparison of exact numerical solution of the full set of coupled equations, and the conditions for its validity are identified.</p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":"5 1","pages":"Pages 8-25"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2010.11.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75266977","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: 8

A comparative study of semiconductor-based plasmonic metamaterials 半导体基等离子体超材料的比较研究

Metamaterials Pub Date : 2011-04-01 DOI: 10.1016/j.metmat.2010.11.001

Gururaj V. Naik , Alexandra Boltasseva

{"title":"A comparative study of semiconductor-based plasmonic metamaterials","authors":"Gururaj V. Naik , Alexandra Boltasseva","doi":"10.1016/j.metmat.2010.11.001","DOIUrl":"10.1016/j.metmat.2010.11.001","url":null,"abstract":"<div><p>Recent metamaterial (MM) research faces several problems when using metal-based plasmonic components as building blocks for MMs. The use of conventional metals for MMs is limited by several factors: metals such as gold and silver have high losses in the visible and near-infrared (NIR) ranges and very large negative real permittivity values, and in addition, their optical properties cannot be tuned. These issues that put severe constraints on the device applications of MMs could be overcome if semiconductors are used as plasmonic materials instead of metals. Heavily doped, wide bandgap oxide semiconductors could exhibit both a small negative real permittivity and relatively small losses in the NIR. Heavily doped oxides of zinc and indium were already reported to be good, low loss alternatives to metals in the NIR range. Here, we consider these transparent conducting oxides (TCOs) as alternative plasmonic materials for many specific applications ranging from surface-plasmon-polariton waveguides to MMs with hyperbolic dispersion and epsilon-near-zero (ENZ) materials. We show that TCOs outperform conventional metals for ENZ and other MM-applications in the NIR.</p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":"5 1","pages":"Pages 1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2010.11.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114680024","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: 103