نتایج جستجو برای: electromagnetic wave polarization

تعداد نتایج: 343047  

2015
Yanqin Wang Mingbo Pu Zuojun Zhang Xiong Li Xiaoliang Ma Zeyu Zhao Xiangang Luo

Two-dimensional metasurface has attracted growing interest in recent years, owing to its ability in manipulating the phase, amplitude and polarization state of electromagnetic wave within a single interface. However, most existing metasurfaces rely on the collective responses of a set of discrete meta-atoms to perform various functionalities. In this paper, we presented a quasi-continuous metas...

2010
Jia-ming HAO Min QIU Lei ZHOU

Polarization is an important characteristic of electromagnetic (EM) waves, and efficient manipulations over EM wave polarizations are always desirable in practical applications. Here, we review the recent efforts in controlling light polarizations with metamaterials, at frequencies ranged from microwave to visible. We first presented a 4 × 4 version transfer matrix method (TMM) to study the sca...

2015
Christopher T. Nadovich Derek J. Kosciolek William D. Jemison David T. Crouse

The use of grating couplers to couple light near vertically in and out of optical slab or film waveguides represents an attractive method to interface optical fiber to photonic ICs. Newly developed fiber technologies exploiting vector mode polarization and orbital angular momentum (OAM) are inherently threedimensional and interfaces for such beams require the solution of fully general 3D models...

2002
H. SAGAWA

We have studied the core-polarization effect on the IsOd-she11 single-particle electromagnetic quadrupole transitions due to coupling with the quadrupole giant resonances. The self-consistent Hartree-Fock + RPA method is applied for the calculations of the single-particle wave functions and the response functions of the giant resonances. The particle-vibration-coupling model is used to calculat...

2013
Takashi Arikawa Lei Ren Alexey A. Belyanin Junichiro Kono

Anisotropy is ubiquitous in solids and enhanced in low-dimensional materials. In response to an electromagnetic wave, anisotropic absorptive and refractive properties result in dichroic and birefringent optical phenomena both in the linear and nonlinear optics regimes. Such material properties have led to a diverse array of useful polarization components in the visible and near-infrared, but ma...

2014
Rakesh Kumar Singh Dinesh N Naik Hitoshi Itou Lasse-Petteri Leppänen Kimmo Saastamoinen Ari T Friberg Tero Setälä

We introduce an interferometric interpretation for the degree of polarization as a quantity characterizing the ability of a light beam to generate polarization modulation when it interferes with itself. The result is confirmed experimentally in Youngʼs interferometer with beams of controlled degree of polarization and by comparing to a standard polarimetric measurement. The new interpretation i...

2003
F. Kazemi Tabatabaei J. E. Amaro J. A. Caballero

A study of the effects of meson-exchange currents and isobar configurations in A(e, e ′ p)B reactions is presented. We use a distorted wave impulse approximation (DWIA) model where final-state interactions are treated through a phenomenological optical potential. The model includes relativistic corrections in the kinematics and in the electromagnetic one-and two-body currents. The full set of p...

2005
M. V. Erementchouk L. I. Deych A. A. Lisyansky

A general approach to the analysis of optical properties of photonic crystals based on multiplequantum-well structures is developed. The effect of the polarization state and a non-perpendicular incidence of the electromagnetic wave is taken into account by introduction of an effective excitonic susceptibility and an effective optical width of the quantum wells. This approach is applied to consi...

2004
Angela N. Fantino Susana I. Grosz Diana C. Skigin

The diffraction problem of a plane wave impinging on a grating formed by nested cavities is solved by means of the modal method, for s and p polarization modes. The cavities are formed by perfectly conducting sheets that describe rectangular profiles. The electromagnetic response of the grating is analyzed, paying particular attention to the generation of resonances within the structure. The de...

2003
F. Kazemi Tabatabaei J. E. Amaro

A study of the effects of meson-exchange currents and isobar configurations in A(e, e ′ p)B reactions is presented. We use a distorted wave impulse approximation (DWIA) model where final-state interactions are treated through a phenomenological optical potential. The model includes relativistic corrections in the kinematics and in the electromagnetic one-and two-body currents. The full set of p...

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