Plasmonics NanoSensor

This paper presents a number of plasmonics based nanosensors that is currently being investigated in IHPC. In the first case, the influence of external magnetic field and electron on the field distribution of active semiconductor microcavity with elliptical shape is studied. It is observed that high amount of electron pumped into the elliptical microcavity demonstrate the plasmonics field distribution, which can be used to sense the change in wavelength and electron/holes densities. The second case will discuss about using plasmonics to enhance the electromagnetic wave from metallic waveguide slot. The enhancement is more than 100 times and this is important for the generation of electron-holes pair in PIN based photo-detector. The third case will discuss using the metallic nanowire to sense different surrounding materials. The small differences in the refractive index of the surrounding materials show the different plasmonics resonance frequencies.

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Schwingung eines Plasmazylinders in einem axialen Magnetfeld II

Zeitschrift für Naturforschung A ◽

10.1515/zna-1960-0306 ◽

1960 ◽

Vol 15 (3) ◽

pp. 220-226 ◽

Cited By ~ 7

Author(s):

Klaus Körper

Keyword(s):

Magnetic Field ◽

Refractive Index ◽

External Magnetic Field ◽

Field Strength ◽

Axial Magnetic Field ◽

Surface Current ◽

The Other ◽

Plasma Cylinder ◽

Resonance Frequencies ◽

The Magnetic Field

Radial oscillations are excited in a homogeneous infinite plasma cylinder in a homogeneous axial magnetic field by a surface current which is homogeneous in the axial and azimuthal directions. The modes of oscillations corresponding to the axial and azimuthal components of current are not coupled, and so they may be analysed separately. The magnetic field in the plasma and vacuum is obtained, and the indices of refraction for both types of oscillations are discussed thoroughly. When the currents are parallel to the external magnetic field, the oscillations are characterized by the refractive index of Eccles. On the other hand, when the current is perpendicular to the magnetic field two resonance frequencies exist, which depend on the density of the plasma and the magnetic field strength. — In the latter case the radial characteristic oscillations of the plasma cylinder in an external magnetic field are considered.

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Metamaterials from Amorphous Ferromagnetic Microwires: Interaction between Microwires

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.152-153.357 ◽

2009 ◽

Vol 152-153 ◽

pp. 357-360 ◽

Cited By ~ 2

Author(s):

Andrei V. Ivanov ◽

A.N. Shalygin ◽

V.Yu. Galkin ◽

A.V. Vedyayev ◽

V.A. Ivanov

Keyword(s):

Magnetic Field ◽

Refractive Index ◽

Optical Properties ◽

External Magnetic Field ◽

Electromagnetic Waves ◽

Negative Refractive Index ◽

Magnus Effect ◽

Amorphous Ferromagnet ◽

Wide Scale ◽

Optical Magnus Effect

For inhomogeneous mediums the оptical Magnus effect has been derived. The metamaterials fabricated from amorphous ferromagnet Co-Fe-Cr-B-Si microwires are shown to exhibit a negative refractive index for electromagnetic waves over wide scale of GHz frequencies. Optical properties and optical Magnus effect of such metamaterials are tunable by an external magnetic field.

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Engineering Electromagnetic Wave Propagation in Periodically Layered Gyromagnetic Metamaterials with an External Magnetic Field

Plasmonics ◽

10.1007/s11468-019-00913-0 ◽

2019 ◽

Vol 14 (5) ◽

pp. 1243-1251 ◽

Cited By ~ 3

Author(s):

Xiongshuo Yan ◽

Guanghui Wang ◽

Dongmei Deng

Keyword(s):

Magnetic Field ◽

Wave Propagation ◽

Electromagnetic Wave ◽

External Magnetic Field ◽

Electromagnetic Wave Propagation

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On the emission of radiation from a localized current source in a magnetoplasma

Journal of Plasma Physics ◽

10.1017/s0022377800023199 ◽

1978 ◽

Vol 19 (2) ◽

pp. 201-225 ◽

Cited By ~ 13

Author(s):

M. J. Giles

Keyword(s):

Magnetic Field ◽

Refractive Index ◽

External Magnetic Field ◽

Current Source ◽

Dielectric Tensor ◽

External Current ◽

New Approach ◽

Dispersion Surface ◽

Radiation Zone ◽

Angle Of Rotation

A new approach to the problem of the radiation emitted from a localized external current source embedded in a magnetoplasma is described. It is argued that the calculation of the fields in the radiation zone can be substantially simplified by adopting at the outset a suitable parametrization of the dispersion surface. We illustrate the approach by calculating the far fields using the full expression for the dielectric tensor of a warm magnetized electron gas. In this case one can take the angle of rotation about the external magnetic field and the square of the refractive index as the curvilinear co-ordinates of the dispersion surface. The form of the surfaces of constant phase and the amplitudes of the emitted waves are described for each topologically different region of parameter space and their structures are related to the shapes of the refractive index surfaces. Attention is also drawn to the existence of locally cylindrical waves that can produce beams which are highly collimated in the direction of the external magnetic field.

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Modulated Beams in a Plasma with a Magnetic Field

Zeitschrift für Naturforschung A ◽

10.1515/zna-1961-1203 ◽

1961 ◽

Vol 16 (12) ◽

pp. 1313-1319

Author(s):

E. Canobbio ◽

R. Croci

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Energy Loss ◽

Single Particle ◽

Linear Density ◽

Energy Output ◽

Straight Beam ◽

Resonance Frequencies ◽

Steady Magnetic Field ◽

Cerenkov Effect

The radiation emitted by a linear density-modulated beam of ions parallel to a steady magnetic field and by a straight beam perpendicular to the field into a non dissipative plasma is investigated. In both cases the energy output becomes infinite at the “ion” and “electron resonance frequencies”.From the expression for the radiation of the beam which is parallel to the external magnetic field the energy loss of a single particle by ČERENKOV effect is also derived.

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MODIFIED WAVE EQUATION FOR SPINLESS PARTICLES AND ITS SOLUTIONS IN AN EXTERNAL MAGNETIC FIELD

Modern Physics Letters A ◽

10.1142/s0217732313500144 ◽

2013 ◽

Vol 28 (06) ◽

pp. 1350014 ◽

Cited By ~ 12

Author(s):

S. I. KRUGLOV

Keyword(s):

Magnetic Field ◽

Wave Equation ◽

External Magnetic Field ◽

Quantum Mechanical ◽

Third Order ◽

Modified Dispersion Relation ◽

First Order ◽

The Third ◽

Uniform External Magnetic Field ◽

Schrödinger Form

The wave equation for spinless particles with the Lorentz violating term is considered. We formulate the third-order in derivatives wave equation leading to the modified dispersion relation. The first-order formalism is considered and the density matrix is obtained. The Schrödinger form of equations is presented and the quantum-mechanical Hamiltonian is found. Exact solutions of the wave equation are obtained for particles in the constant and uniform external magnetic field. The change of the synchrotron radiation radius due to quantum gravity corrections is calculated.

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