发布求助
文献互助 智能选刊 最新文献

2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)最新文献

筛选
英文 中文
Metasurface Quantum Well Photodetectors with Broadened Photoresponse Using a Patchwork of Cavities within a Subwavelength Period 在亚波长周期内使用空腔拼接的光响应加宽的超表面量子阱光电探测器
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285007
M. Hainey, T. Mano, T. Kasaya, Y. Jimba, H. Miyazaki, T. Ochiai, H. Osato, K. Watanabe, Y. Sugimoto, T. Kawazu, Y. Arai, A. Shigetou, H. Miyazaki
{"title":"Metasurface Quantum Well Photodetectors with Broadened Photoresponse Using a Patchwork of Cavities within a Subwavelength Period","authors":"M. Hainey, T. Mano, T. Kasaya, Y. Jimba, H. Miyazaki, T. Ochiai, H. Osato, K. Watanabe, Y. Sugimoto, T. Kawazu, Y. Arai, A. Shigetou, H. Miyazaki","doi":"10.1109/Metamaterials49557.2020.9285007","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285007","url":null,"abstract":"The integration of quantum well infrared photodetectors with plasmon cavities has allowed for demonstration of sensitive photodetectors in the mid-infrared. These detectors typically use only a single type of plasmon cavity, but previous studies of metasurface absorbers has shown that combining multiple cavities in a single subwavelength period can generate complex photoresponses such as multi-band and broadband absorption. In this report, we use a simple square cavity design as a building block for demonstrating detectors with a broadened photoresponse. Device performance of simple square detectors is comparable to previous highdetectivity designs, and by using a patchwork of square cavities within a single subwavelength period, we can subsequently broaden photoresponse by 1.5 times. Absorption in these patchwork cavity detectors shows good agreement with previous reports for metasurface absorbers, and suggests that this design and fabrication process could serve as a roadmap for integrating detectors and metasurface cavities with more complex photoresponses.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122891383","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 topolectrical higher-order Chern insulator 一种拓扑电高阶陈氏绝缘子
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285050
X. Ni, Z. Xiao, A. Khanikaev, A. Alú
{"title":"A topolectrical higher-order Chern insulator","authors":"X. Ni, Z. Xiao, A. Khanikaev, A. Alú","doi":"10.1109/Metamaterials49557.2020.9285050","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285050","url":null,"abstract":"We propose a scheme to realize a higher-order Chern insulator in an electrical circuit. By utilizing basic circuit elements synthesizing complex hoppings between sites of the lattice, we observe multiple topological phases of the three-dimensional circuit array, including higher-order Chern number and crystalline topological phase. In addition to nonreciprocal propagation of topological chiral hinge states, we find that these chiral states do not flow into the hinge opposite to the excitation, opening interesting opportunities for multiplexing.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123071912","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
Discrete-Space Metamaterials for Optical Signal Processing 离散空间超材料用于光信号处理
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285105
M. Moeini, D. Sounas
{"title":"Discrete-Space Metamaterials for Optical Signal Processing","authors":"M. Moeini, D. Sounas","doi":"10.1109/Metamaterials49557.2020.9285105","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285105","url":null,"abstract":"Optical signal processing (OSP) has recently received renewed interest as digital computers are approaching the processing limits dictated by Moore’s law. Here, inspired by digital filters, we propose a new type of OSP metamaterials based on discretization of optical waves in space and subsequent implementation of the desired mathematical operation on the discretized wave. A first order differentiator (subtractor) metasurface in transmission mode is designed as a proof of concept. Compared to other techniques, our approach is characterized by modularity, adaptivity to different forms of operations, broader bandwidth and lower loss.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133048236","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
A Phase Conjugating Metasurface 相位共轭超表面
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285015
F. Salas, W. Alomar, A. Grbic
{"title":"A Phase Conjugating Metasurface","authors":"F. Salas, W. Alomar, A. Grbic","doi":"10.1109/Metamaterials49557.2020.9285015","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285015","url":null,"abstract":"This paper presents the design of a phase conjugating metasurface operating at 10 GHz. The designed metasurface achieves phase conjugation, by heterodyning (mixing) an incident RF signal with a pump (modulation) signal at twice the frequency of the incident RF signal. Frequency mixing is achieved through the use of fast switching Schottky diodes. The unit cell of the metasurface is composed of a subwavelength metallic patch that is aperture coupled to the heterodyning circuit. Metasurfaces offer a low-profile alternative to retrodirective antenna arrays. Such metasurfaces could play a key role in far-field wireless power transfer systems.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"16 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133811398","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
Efficient Mie Resonance of Metal-masked Titanium Dioxide Nanopillars 金属掩膜二氧化钛纳米柱的高效Mie共振
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285047
X. Shang, L. Shi, J. Niu, C. Xie
{"title":"Efficient Mie Resonance of Metal-masked Titanium Dioxide Nanopillars","authors":"X. Shang, L. Shi, J. Niu, C. Xie","doi":"10.1109/Metamaterials49557.2020.9285047","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285047","url":null,"abstract":"Here, we propose a simple design approach based on metal-masked titanium dioxide nanopillars, which can realize strong Mie resonance in metasurfaces and enables light confinement within itself over the range of visible wavelengths. By selecting the appropriate period and diameter of individual titanium dioxide nanopillars, the coincidence of resonance peak positions derived from excited electric and magnetic dipoles can be achived. And the optical properties in this design have been investigated with the Finite-Difference Time-Domain(FDTD) solutions.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133958309","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
2.5D Metastructures; Design, Optimization, and Experimental Demonstration 2.5 d亚结构;设计，优化和实验演示
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285149
M. Mansouree, H. Kwon, E. Arbabi, A. McClung, A. Faraon, A. Arbabi
{"title":"2.5D Metastructures; Design, Optimization, and Experimental Demonstration","authors":"M. Mansouree, H. Kwon, E. Arbabi, A. McClung, A. Faraon, A. Arbabi","doi":"10.1109/Metamaterials49557.2020.9285149","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285149","url":null,"abstract":"We present the design, fabrication, and characterization of multifunctional 2.5D metastructures using adjoint optimization. Our technique considers complex interactions among meta-atoms and offers significantly improved performance compared to conventional unit-cell-based techniques.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133278087","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
Engineering the Electric and Magnetic Response of All-Dielectric Metasurfaces through Core-Shell Mie Resonators 利用核壳米氏谐振器设计全介电超表面的电磁响应
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285147
A. Monti, A. Alú, A. Toscano, F. Bilotti
{"title":"Engineering the Electric and Magnetic Response of All-Dielectric Metasurfaces through Core-Shell Mie Resonators","authors":"A. Monti, A. Alú, A. Toscano, F. Bilotti","doi":"10.1109/Metamaterials49557.2020.9285147","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285147","url":null,"abstract":"In this contribution, we discuss two different strategies aimed at tailoring the electric and magnetic response of an all-dielectric metasurface. Specifically, we investigate the possibilities enabled by two different families of core-shell meta-atoms: concentric all-dielectric spheres and homogenous spheres covered by a reactive layer. The analysis of the scattering properties of these two classes of particles reveals intriguing effects that can be used for the design of innovative metasurfaces exploiting the entire multipolar response of their meta-atoms. Several examples are considered and investigated both analytically and numerically.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122841856","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
Demonstration of the Relation Between Co- and Cross-Polarizabilities Using a Multipole Expansion of the Electromotive Force for Planar Bianisotropic Scatterers 用平面双各向异性散射体电动势的多极展开论证共极化和交叉极化之间的关系
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285055
A. C. Escobar, J. Baena
{"title":"Demonstration of the Relation Between Co- and Cross-Polarizabilities Using a Multipole Expansion of the Electromotive Force for Planar Bianisotropic Scatterers","authors":"A. C. Escobar, J. Baena","doi":"10.1109/Metamaterials49557.2020.9285055","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285055","url":null,"abstract":"For many small scatterers $alpha_{ee}alpha_{mm}=alpha_{me}alpha_{em}$. However, it is possible to find others that strongly violate this rule. By using a multiple expansion on the electromotive force of an equivalent circuit equation obtained via the complex Poynting’s theorem, here we demonstrate that the rule is valid when the expansion can be truncated at the dipole moments.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116370715","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
Efficient light trapping in the infrared using gold – black phosphorus nanostructured absorbers 利用金-黑磷纳米结构吸收剂在红外波段的有效光捕获
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9285083
Romil Audhkhasi, M. Povinelli
{"title":"Efficient light trapping in the infrared using gold – black phosphorus nanostructured absorbers","authors":"Romil Audhkhasi, M. Povinelli","doi":"10.1109/Metamaterials49557.2020.9285083","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9285083","url":null,"abstract":"We propose a gold – based nanostructured design for achieving enhanced absorption in ultrathin black phosphorus (BP) layers in the 3 – 5 $mu$ m wavelength range. By suitably tuning the design parameters, we are able to excite strongly localized modes in BP layers of thicknesses ranging from 5 to 50 nm at a wavelength of 4 $mu$ m. We test the efficiency of these absorbers by computing their absorption enhancement factor and comparing it against the conventional 4n2 limit. For a BP layer thickness of 5 nm, we are able to achieve an enhancement of 561 at a wavelength of 4 $mu$ m, which is significantly greater than the conventional value of 4 n2 equal to 34 for an isolated textured BP layer.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115266177","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
TE Band Structure for High Contrast Honeycomb Media 高对比度蜂窝介质的TE波段结构
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2020-09-27 DOI: 10.1109/Metamaterials49557.2020.9284975
M. Cassier, M. Weinstein
{"title":"TE Band Structure for High Contrast Honeycomb Media","authors":"M. Cassier, M. Weinstein","doi":"10.1109/Metamaterials49557.2020.9284975","DOIUrl":"https://doi.org/10.1109/Metamaterials49557.2020.9284975","url":null,"abstract":"We study the band structure of transverse electric (TE) waves in a 2D medium consisting of a homogeneous bulk and a honeycomb array of higher permittivity dielectric “inclusions” In the high contrast regime and under a non-degeneracy condition, the first two dispersion surfaces touch at conical singularities, Dirac points, over the vertices of the Brillouin zone. We use analytical ideas, together with numerical simulations, to deduce detailed local information at the conical crossings as well as global behavior over the full Brillouin zone. Essential differences between this E & M setting and the quantum model of graphene are discussed.","PeriodicalId":260995,"journal":{"name":"2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124371278","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书