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2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)最新文献

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Design and Optimization of pn Junctions in Silicon Microdisk Modulators 硅微盘调制器pn结的设计与优化
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017833
D. Gostimirovic, W. Ye
{"title":"Design and Optimization of pn Junctions in Silicon Microdisk Modulators","authors":"D. Gostimirovic, W. Ye","doi":"10.1109/PIERS-Spring46901.2019.9017833","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017833","url":null,"abstract":"An optoelectronic modulator is a key building block in silicon photonic telecommunication circuits. The dominant modulation mechanism uses free-carrier depletion in microring resonators, for its combined advantages of high speed, low power, low spatial footprint, and low fabrication cost and complexity. Recent advancements show that a microdisk modulator, with its pn junction oriented vertically, achieves a larger modulation efficiency due to the stronger interaction with the resonant optical mode. In this work, we verify and compare the simulated performance of metaheuristically optimized lateral and vertical pn junction microdisk modulators that are otherwise identical. We also present two new configurations: The double vertical and staggered double vertical pn junction microdisk modulators. Both of these exhibit stronger mode-junction interactions and greater modulation efficiencies than the state-of-the-art designs.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129097740","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
Rigorous Modal Analysis of Resonators with Dispersive Materials 色散材料谐振腔的严格模态分析
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017634
A. Gras, P. Lalanne, Wei Yan
{"title":"Rigorous Modal Analysis of Resonators with Dispersive Materials","authors":"A. Gras, P. Lalanne, Wei Yan","doi":"10.1109/PIERS-Spring46901.2019.9017634","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017634","url":null,"abstract":"The most general motion of a system is a superposition of its normal modes, or eigenstates. For Hermitian system, classical normal mode theory applies. For non-Hermitian systems, presently much progress is done to describe the response of optical micro and nanoresonators in their quasinormal mode basis. We have developed a rigorous modal analysis of nanoresonators with unprecedented generality and report numerical results for the general case of 3D resonators, made of dispersive, anisotropic materials on substrates with guiding layers.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"261 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128901442","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
Accurate Nyström Solution for Electromagnctic Scattering by Sharp-corner Objects 陡角物体电磁散射的精确Nyström解决方案
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017504
Qing Xu, Jian Zhang, M. Tong
{"title":"Accurate Nyström Solution for Electromagnctic Scattering by Sharp-corner Objects","authors":"Qing Xu, Jian Zhang, M. Tong","doi":"10.1109/PIERS-Spring46901.2019.9017504","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017504","url":null,"abstract":"The Nyström method solution for electromagnetic (EM) scattering by a sharp-corner object is presented. The object is assumed to be a perfectly electric conductor (PEC) and the problem is described by an electric field integral equation (EFIE). Compared to the method of moments (MoM), the merits of Nyström method include the simple mechanism of implementation, removal of basis and testing functions, allowance of using nonconforming meshes, and ease of enhancing numerical accuracy. Although the Nyström method has been widely used to solve various EM problems, it seldom dealt with the problems with highly sharp structures. In this work, the EM scattering by sharp-corner objects is considered and the method is applied to solve it. A numerical example is presented to demonstrate the method and good results have been obtained.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130625472","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
Multiphysics Modelling of Membrane Electroporation in Irregularly Shaped Cells 不规则形状细胞中膜电穿孔的多物理场模拟
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017428
L. Mescia, M. A. Chiapperino, P. Bia, C. Lamacchia, J. Gielis, D. Caratelli
{"title":"Multiphysics Modelling of Membrane Electroporation in Irregularly Shaped Cells","authors":"L. Mescia, M. A. Chiapperino, P. Bia, C. Lamacchia, J. Gielis, D. Caratelli","doi":"10.1109/PIERS-Spring46901.2019.9017428","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017428","url":null,"abstract":"Electroporation is a non-thermal electromagnetic phenomenon widely used in medical diseases treatment. Different mathematical models of electroporation have been proposed in literature to study pore evolution in biological membranes. This paper presents a nonlinear dispersive multiphysic model of electroporation in irregular shaped biological cells in which the spatial and temporal evolution of the pores size is taken into account. The model solves Maxwell and asymptotic Smoluchowski equations and it describes the dielectric dispersion of cell media using a Debye-based relationship. Furthermore, the irregular cell shape has been modeled using the Gielis superformula. Taking into account the cell in mitosis phase, the electroporation process has been studied comparing the numerical results pertaining the model with variable pore radius with those in which the pore radius is supposed constant. The numerical analysis has been performed exposing the biological cell to a rectangular electric pulse having duration of $10 mumathrm{s}$. The obtained numerical results highlight considerable differences between the two different models underling the need to include into the numerical algorithm the differential equation modeling the spatial and time evolution of the pores size.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130732046","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
Wavelet Codes and Their Implementation for Protection of NAND Flash Memory 小波编码及其在NAND闪存保护中的实现
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017402
A. Levina, S. Taranov, D. Kaplun, P. Boyvalenkov
{"title":"Wavelet Codes and Their Implementation for Protection of NAND Flash Memory","authors":"A. Levina, S. Taranov, D. Kaplun, P. Boyvalenkov","doi":"10.1109/PIERS-Spring46901.2019.9017402","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017402","url":null,"abstract":"Nowadays wavelet theory finds implementations in many scientific aspects. It is implemented in the signal processing such as video and audio signals, in data transformation, and in many other areas. In this work, we present implementations of wavelets in coding theory and then apply resulting codes for the protection of NAND flash memory. Our application with new wavelet codes and their implementation in NAND flash memory prevents different types of errors and gives a higher level of security.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132400510","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
Microwave Ablation Antenna for Functional Adenomas in the Adrenal Gland 微波消融天线在肾上腺功能性腺瘤中的应用
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017498
L. Farina, A. J. de Marco, A. Bottiglieri, G. Ruvio, J. Eaton-Evans, M. Dennedy, A. Elahi, M. Ohalloran
{"title":"Microwave Ablation Antenna for Functional Adenomas in the Adrenal Gland","authors":"L. Farina, A. J. de Marco, A. Bottiglieri, G. Ruvio, J. Eaton-Evans, M. Dennedy, A. Elahi, M. Ohalloran","doi":"10.1109/PIERS-Spring46901.2019.9017498","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017498","url":null,"abstract":"Microwave thermal ablation has been thoroughly investigated in the last decades. However, new challenges for this technology are nowadays represented by specific applications. The present work investigates a promising ablative solution for the treatment of functional adenomas in the adrenal gland. In this paper, a numerical study conducted to build and test an optimized internally cooled triaxial antenna is presented. The antenna has been designed to minimize its transversal dimension merging radiating and cooling elements. The proposed antenna has been then built in our laboratories and experimentally tested on ex vivo biological tissues. Numerical and experimental results will be reported and discussed.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132439269","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: 6
Mathematical Foundations of a Geometric Theory of Diffraction for Light Scattering from a 3D Topographic Photomask 三维地形掩模光散射几何衍射理论的数学基础
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017443
David H. Wei, R. Howell, Yen-Wen Lu, Yu Cao
{"title":"Mathematical Foundations of a Geometric Theory of Diffraction for Light Scattering from a 3D Topographic Photomask","authors":"David H. Wei, R. Howell, Yen-Wen Lu, Yu Cao","doi":"10.1109/PIERS-Spring46901.2019.9017443","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017443","url":null,"abstract":"Applications in the field of computational lithography require an accurate and extremely fast method to compute light scatterings from a photomask, which is laterally sized on the order of 10 cm in each of two dimensions and consists of dense sub-100 nm geometric patterns. All but every practical solution approaches this challenging problem by integrating scattering effects of knife-edges in association with the mask pattern boundaries. Photomasks in the near future will require integrating effects of curved edges. This paper presents a rigorous mathematical formulation of a geometric theory of diffraction for light scattering from a photomask, as an attempt to not only unify previous edge-based Mask3D models and methods, but also lay the theoretical foundations for continuing technology developments, especially Mask3D modeling of the upcoming curvilinear patterned masks. As a by-product, this paper should be useful for computational electromagnetics practitioners, and computational lithography engineers in particular, to get familiar with some of the powerful mathematical tools in differential forms, tensor analysis, and Riemann surfaces.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132518011","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
Localized Bessel Beams for Through-the-wall Communications 用于穿墙通信的局部贝塞尔波束
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017502
S. Costanzo, G. Di Massa
{"title":"Localized Bessel Beams for Through-the-wall Communications","authors":"S. Costanzo, G. Di Massa","doi":"10.1109/PIERS-Spring46901.2019.9017502","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017502","url":null,"abstract":"Through-the-wall capabilities of Bessel sources in the framework of short-range sensing are investigated in the present contribution. Assuming a two layers stratification to model the wall, the expression of the transmitted Bessel beam is derived and the power delivery computation behind the wall is numerically performed. Preliminary numerical validations are performed on a realistic wall scenario, thus proving the effectiveness of Bessel beams to provide focused patterns useful for short-range target detection behind a wall.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132080966","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
Assessment of the Modulation Transfer Function in Infrared Focal Plane Arrays 红外焦平面阵列调制传递函数的评估
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017598
J. Schuster
{"title":"Assessment of the Modulation Transfer Function in Infrared Focal Plane Arrays","authors":"J. Schuster","doi":"10.1109/PIERS-Spring46901.2019.9017598","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017598","url":null,"abstract":"There is a perpetual drive in the infrared (IR) detector community to fabricate detectors with smaller pixel pitches where the ultimate goals are 5 µm for LWIR imaging and 3 µm for MWIR imaging. Such small pixel pitches ideally will result in significantly improving the modulation transfer function (MTF), especially at longer spatial frequencies. The MTF is a key figure of merit (FOM) in all cameras that describes how well an optical system reproduces an objects contrast in the image at different spatial frequencies. However, high performance IR detectors have historically been fabricated out of materials such as InSb or HgCdTe. These semiconductors have material properties that are isotropic, e.g., the hole mobilities along the in-plane and growth directions are equal. However, IR absorbing materials with anisotropic material properties, such as type II superlattice (T2SL) materials, based on InAs/GaInSb or InAs/InAsSb, have become increasingly prevalent. Specifically, the hole mobility is much larger along the in-plane direction than the growth direction. These detectors with anisotropic material properties have been predicted to have higher inter-pixel crosstalk and degraded MTF compared to geometrically identical detectors except with isotropic material properties. The MTF as a function of pixel pitch is analyzed, comparing detectors with isotropic versus anisotropic material properties, to assess the potential of using T2SL detectors with pixel pitches less than 10 µm for imaging.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"296 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130798104","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
The Fine Structure Constant and Graphene 精细结构常数与石墨烯
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017668
S. Vesely, A. Vesely, S. Dolci
{"title":"The Fine Structure Constant and Graphene","authors":"S. Vesely, A. Vesely, S. Dolci","doi":"10.1109/PIERS-Spring46901.2019.9017668","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017668","url":null,"abstract":"Looking at recent results in an historical perspective can motivate more thorough understandings. In this paper we recapitulate the origin of the fine structure constant, from Bohr's atom to Sommerfeld, to Dirac. That constant is found again in the framework of condensed matter physics, in a material, graphene, which is much more complex than the hydrogen atom. This is an example of how methods of high energy physics are applied in materials science and nanotechnologies.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130374771","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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