نتایج جستجو برای: magneto optics

تعداد نتایج: 43164  

Journal: :Physical chemistry chemical physics : PCCP 2016
Janusz Cukras Joanna Kauczor Patrick Norman Antonio Rizzo Geert L J A Rikken Sonia Coriani

A computational protocol for magneto-chiral dichroism and magneto-chiral birefringence dispersion is presented within the framework of damped response theory, also known as complex polarization propagator theory, at the level of time-dependent Hartree-Fock and time-dependent density functional theory. Magneto-chiral dichroism and magneto-chiral birefringence spectra in the (resonant) frequency ...

2003
B. Sepúlveda G. Armelles

The effects of nanostructuration on the magneto-optic properties of ultrathin monocrystalline iron films grown on MgO ~001! are investigated through the magneto-optic coefficients, which have a linear and quadratic dependence on the magnetization. The photon energy dependence of such magneto-optic coefficients is determined by measuring the relative variations of the reflectivity (DRpp /Rpp) fo...

Journal: :Optics express 2016
Mikko Kataja Sara Pourjamal Nicolò Maccaferri Paolo Vavassori Tommi K Hakala Mikko J Huttunen Päivi Törmä Sebastiaan van Dijken

We report on the optical and magneto-optical response of hybrid plasmonic lattices that consist of pure nickel and gold nanoparticles in a checkerboard arrangement. Diffractive far-field coupling between the individual emitters of the lattices results in the excitation of two orthogonal surface lattice resonance modes. Local analyses of the radiation fields indicate that both the nickel and gol...

2016
Shiheng Liang Rugang Geng Baishun Yang Wenbo Zhao Ram Chandra Subedi Xiaoguang Li Xiufeng Han Tho Duc Nguyen

We investigated curvature-enhanced spin-orbit coupling (SOC) and spinterface effect in carbon-based organic spin valves (OSVs) using buckyball C60 and C70 molecules. Since the naturally abundant (12)C has spinless nuclear, the materials have negligible hyperfine interaction (HFI) and the same intrinsic SOC, but different curvature SOC due to their distinct curvatures. We fitted the thickness de...

2014
Ou Chen Lars Riedemann Fred Etoc Hendrik Herrmann Mathieu Coppey Mariya Barch Christian T. Farrar Jing Zhao Oliver T. Bruns He Wei Peng Guo Jian Cui Russ Jensen Yue Chen Daniel K. Harris Jose M. Cordero Zhongwu Wang Alan Jasanoff Dai Fukumura Rudolph Reimer Maxime Dahan Rakesh K. Jain Moungi G. Bawendi

Magneto-fluorescent particles have been recognized as an emerging class of materials that exhibit great potential in advanced applications. However, synthesizing such magneto-fluorescent nanomaterials that simultaneously exhibit uniform and tunable sizes, high magnetic content loading, maximized fluorophore coverage at the surface and a versatile surface functionality has proven challenging. He...

Magneto-electro-elastic materials are multiphase smart materials that exhibit coupling among electrical, magnetic and mechanical energy fields. Due to this ability, they have been the topic of numerous research in the past decade. In this paper, buckling behavior of a multiphase magneto-electro-elastic rectangular plate with simply supported boundary conditions is investigated, based on Reddy’s...

2016
K. Saranya V. Aswini

This paper focuses on the use of magneto resistive and sonar sensors for imminent collision detection in cars. The magneto resistive sensors are used to measure the magnetic field from another vehicle in close proximity, to estimate relative position, velocity, and orientation of the vehicle from the measurements. Here the sonar sensor is mainly used to measure the distance only for medium inte...

An attempt is made for the first time to solve the quadratic and cubic model of magneto hydrodynamic Poiseuille flow of Phan-Thein-Tanner (PTT). A series solution of magneto hydrodynamic (MHD) flow is developed by using homotopy perturbation method (HPM). The results are presented graphically and the effects of non-dimensional parameters on the flow field are analyzed. The results reveal many i...

2017
Mikhail Vasiliev Edith Cowan Kamal Alameh Viatcheslav Kotov Kamal E. Alameh

Magneto-optical imaging is widely used to observe the domain patterns in magnetic materials, visualize defects in ferromagnetic objects, and measure the spatial distribution of stray magnetic fields. Optimized 1D magneto-photonic crystals enable a significant increase in the sensitivity of magneto-optical sensors. The properties of such devices based on the optimized reflection (doubled Faraday...

2015
Waqas Mahmood Qing Zhao

In this paper, the Maxwell's equations for a tensorial magneto-electric (ME) medium are solved, which is an extension to the work on the uniaxial anisotropic nonmagnetic medium. The coefficients of the dielectric permittivity, magnetic permeability, and of the magneto-electric effect are considered as tensors. The polarization is shown lying in the plane of two perpendicular independent vectors...

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