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2007 International Conference - Days on Diffraction最新文献

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The comparison of fields excited by input grating coupler with those of surface electromagnetic waves 输入光栅耦合器与表面电磁波激发场的比较
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531997
V. Makin, V. V. Trubaev
{"title":"The comparison of fields excited by input grating coupler with those of surface electromagnetic waves","authors":"V. Makin, V. V. Trubaev","doi":"10.1109/DD.2007.4531997","DOIUrl":"https://doi.org/10.1109/DD.2007.4531997","url":null,"abstract":"The nature of the bulk near-surface light radiation arising in the conditions of surface electromagnetic wave excitation by finite-size input grating has been theoretically studied.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133013758","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
Enhancement of Faraday effect in open resonators 开腔中法拉第效应的增强
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531987
A. Dorofeenko, A. Merzlikin, A. Vinogradov, A. Lisyansky, A. Granovsky, M. Inoue
{"title":"Enhancement of Faraday effect in open resonators","authors":"A. Dorofeenko, A. Merzlikin, A. Vinogradov, A. Lisyansky, A. Granovsky, M. Inoue","doi":"10.1109/DD.2007.4531987","DOIUrl":"https://doi.org/10.1109/DD.2007.4531987","url":null,"abstract":"Enhancement of the Faraday effect in multilayer structures is considered. The structures are treated as open resonators. It is shown that the angle of Faraday rotation can be represented as a product of two factors, the first one is determined by the bulk magnetooptical properties and the second is a Q-factor of the resonator. The enhancement of MO properties is illustrated by consideration of the Airy's partial waves in single MO slab. This approach is generalized to an arbitrary MO resonant structure and allows us to design scheme with \"perfect\" Faraday effect with rotation by 90deg and unitary transmission..","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114350245","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 attempt to improve semiclassical calculations of wave transport in a quantum wire with diffraction 改进带衍射量子线中波输运的半经典计算的尝试
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531993
H. Ishio
{"title":"An attempt to improve semiclassical calculations of wave transport in a quantum wire with diffraction","authors":"H. Ishio","doi":"10.1109/DD.2007.4531993","DOIUrl":"https://doi.org/10.1109/DD.2007.4531993","url":null,"abstract":"In our previous presentations in the series of this seminar, we have shown an interesting phenomenon which was found numerically and later explained semiclassically for coherent electronic transmission through a mesoscopic quantum wire with a step structure: Fistly, we reported by our numerical work that the electric current shows periodic oscillations as a function of a system parameter; secondly, we presented its semiclassical description to explain analytically that this is purely the effect of diffraction and constructive interference of transmitting electrons at the step structure of the wire. This time, we further report an attempt to improve the semi- classical calculations of wave transport in such a system.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124477040","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
Justification of the asymptotic solutions of linear system with a turning point of high order 具有高阶拐点的线性系统渐近解的证明
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531996
V. Kucherenko, A. Kryvko
{"title":"Justification of the asymptotic solutions of linear system with a turning point of high order","authors":"V. Kucherenko, A. Kryvko","doi":"10.1109/DD.2007.4531996","DOIUrl":"https://doi.org/10.1109/DD.2007.4531996","url":null,"abstract":"In the present paper justification of the asymptotic solutions of linear system with a high-order turning point constructed is proved.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130886918","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
Electromagnetic surface waves guided by the metal-composite medium boundary 金属-复合介质边界引导的电磁表面波
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4532008
N. F. Yashina, T. Zaboronkova
{"title":"Electromagnetic surface waves guided by the metal-composite medium boundary","authors":"N. F. Yashina, T. Zaboronkova","doi":"10.1109/DD.2007.4532008","DOIUrl":"https://doi.org/10.1109/DD.2007.4532008","url":null,"abstract":"The possibility of the existence of electromagnetic surface waves guided by the composite medium-metal planer boundary is investigated. It is shown that the parametric interaction of these waves in the presence of an external time-harmonic electromagnetic field can be observed. The expression of growth rate for the surface-wave amplitudes is determined.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127873378","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
On gyroscopic effects in vibrating and axially rotating solid and annular discs 论振动和轴向旋转实心圆盘和环形圆盘的陀螺效应
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531995
S. Joubert, I. Fedotov, W. Pretorius, M. Shatalov
{"title":"On gyroscopic effects in vibrating and axially rotating solid and annular discs","authors":"S. Joubert, I. Fedotov, W. Pretorius, M. Shatalov","doi":"10.1109/DD.2007.4531995","DOIUrl":"https://doi.org/10.1109/DD.2007.4531995","url":null,"abstract":"\"Bryan's effect\" - that is, the effect of a vibrating pattern's precession in the direction of inertial rotation of a vibrating ring - was discovered by G. Bryan in 1890. This effect has several applications in navigational instruments, such as cylindrical, hemispherical and planar circular disc rotational sensors. The model of a thin circular disc vibrating in its plane and subjected to inertial rotation is considered. The dynamics of the disc gyroscope are considered in terms of linear elasticity. Two models are considered: solid discs and a composite disc consisting of concentric annular discs with various boundary conditions on the inner and outer circumferences. It is assumed that the angular rate of inertial rotation of the composite disc is constant and has axial orientation. It is also assumed that this angular rate is much smaller than the lowest eigenvalue of the composite disk. Hence any centrifugal effects and quantities that are proportional to the square of the angular rate are negligible. Our model is formulated in general terms and then compared to a formulation in terms of Novozhilov-Arnold-Warbur-ton's theory of thin shells. The system of equations of motion of the disc is separated and transformed into a pair of wave equations in polar coordinates. A solution is obtained in terms of Bessel and Neumann functions. Various non-axisymmetric modes of the composite disc are considered and the dependence of Bryan's effect on eigenvalues, mass densities of the composite disc, its modulii of elasticity, Poisson ratios, outer and inner radii of the disc, and for various types of boundary conditions, are investigated.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125190129","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
Excitation of whistler modes guided by a lossy anisotropic plasma column 有耗各向异性等离子体柱引导下哨声模式的激发
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4532009
V. A. Es'kin, A. Kudrin, T. Zaboronkova
{"title":"Excitation of whistler modes guided by a lossy anisotropic plasma column","authors":"V. A. Es'kin, A. Kudrin, T. Zaboronkova","doi":"10.1109/DD.2007.4532009","DOIUrl":"https://doi.org/10.1109/DD.2007.4532009","url":null,"abstract":"A study is made of the excitation of electromagnetic waves by spatially bounded given electric currents in the presence of an axially magnetized cylindrical plasma column surrounded by free space. A rigorous solution for the total field comprising both the discrete and continuous parts of the spatial spectrum of the excited waves is found. Using the obtained field representation, the contributions of guided and unguided modes of the column to the impedance of a loop antenna are determined for the whistler frequency range. It is shown that allowance for relatively small collisional losses in the plasma can result in appreciable redistribution of the antenna- launched power among the excited modes.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132733271","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
Diffraction of surface waves on the line of velocity discontinuity 表面波在速度不连续线上的衍射
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531988
N. Kirpichnikova, S. Fadeeva, V. Fadeeva
{"title":"Diffraction of surface waves on the line of velocity discontinuity","authors":"N. Kirpichnikova, S. Fadeeva, V. Fadeeva","doi":"10.1109/DD.2007.4531988","DOIUrl":"https://doi.org/10.1109/DD.2007.4531988","url":null,"abstract":"A problem of diffraction of waves on a vertical interface of media is studied. The waves are radiated by a point source. The reflected and transmitted wave fields are obtained by the method of parabolic equation. The corresponding transformation coefficients are found for the Neumann boundary condition.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990160","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
On similarity between superluminal current pulse shape and time derivative of Whittaker potential 超光速电流脉冲形状与惠特克电位时间导数的相似性
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4532006
F. Valiev
{"title":"On similarity between superluminal current pulse shape and time derivative of Whittaker potential","authors":"F. Valiev","doi":"10.1109/DD.2007.4532006","DOIUrl":"https://doi.org/10.1109/DD.2007.4532006","url":null,"abstract":"In this work the calculation of derivative of Whittaker potential upsi with respect to tau was performed in the framework of linear current model. Results of computation have shown similarity of the form of the superluminal running current pulse on one hand and the derivative of Whittaker potential partupsi/parttau on the other in far region at Cherenkov angle.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130818867","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
Wigner distribution function and intensity integral moments of Hermite-Laguerre-Gaaussian beams 厄米-拉盖尔-高斯光束的维格纳分布函数和强度积分矩
2007 International Conference - Days on Diffraction Pub Date : 2007-05-01 DOI: 10.1109/DD.2007.4531979
E. G. Abramochkin, V. Volostnikov
{"title":"Wigner distribution function and intensity integral moments of Hermite-Laguerre-Gaaussian beams","authors":"E. G. Abramochkin, V. Volostnikov","doi":"10.1109/DD.2007.4531979","DOIUrl":"https://doi.org/10.1109/DD.2007.4531979","url":null,"abstract":"Hermite-Laguerre-Gaussian (HLG) beams are recently introduced light beam family that contains Hermite-Gaussian and Laguerre-Gaussian beams as particular representatives. The Wigner function and some other integral characteristics for HLG beams are found and discussed.","PeriodicalId":192971,"journal":{"name":"2007 International Conference - Days on Diffraction","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126203553","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
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