dipole approximation
Point dipole approximation for small systems of strongly coupled radiating nanorods
... point dipole approximations in small systems of strongly coupled plasmonic nanorods, including the cases of both super-radiant and subradiant excitations, where the characteristics of the excitation depends on the ...
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Point dipole approximation for small systems of strongly coupled radiating nanorods
... point dipole approximation alone can not always accurately model interacting ...multipole approximation was extended to include the point electric ...
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Accurate Computation of Electric Field Enhancement Factors for Metallic Nanoparticles Using the Discrete Dipole Approximation
... discrete dipole approximation [4, 5] (also called the coupled dipole approximation) is one of several numerical methods that have been developed to simulate the response of a small particle to ...
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Up-Conversion Luminescence Properties of Lanthanide-Gold Hybrid Nanoparticles as Analyzed with Discrete Dipole Approximation
... Abstract: Up-conversion nanoparticles (UCNP) under near-infrared (NIR) light irradiation have been well investigated in the field of bio-imaging. However, the low up-conversion luminescence (UCL) intensity limits ...
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Synthesis, Study, and Discrete Dipole Approximation Simulation of Ag Au Bimetallic Nanostructures
... In the present study, Ag-Au alloy and core-shell nano- structures with a plasmon resonance absorption within the range 400–520 nm were successfully synthesized through co-reduction and seed-mediated growth methods. The ...
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Electromagnetic enhancement of ordered silver nanorod arrays evaluated by discrete dipole approximation
... The enhancement factor of SERS of 2D hexagonal silver nanorod arrays was investigated by using the discrete dipole approximation method. The computational studies clearly showed that “hotspots” were ...
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Calculation of the Induced Charge Distribution on the Surface of a Metallic Nanoparticle Due to an Oscillating Dipole Using Discrete Dipole Approximation method
... discrete dipole approximation (DDA) [ 9], multiple multipolar approximation (MMA) [ 10] and conjugate gradient fast Fourier transform (CG-FFT) [ ...
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Point dipole approximation for small systems of strongly coupled radiating nanorods
... electric dipole resonators and those of four interacting finite-size ...electric dipole approximation’s line shift from the nanorod model’s, begins to occur when the separation between parallel pairs of ...
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Point dipole and quadrupole scattering approximation to collectively responding resonator systems
... magnetic dipole approximation, introduced in ...quadrupole approximation in the same formalism that can be used to model also more general resonator and emitter ...
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Theoretical Analysis of the Optical Properties of Gold Nanoparticles Using DDA Approximation
... 12. Muller, J., Parent, G., Jeandel, G., Lacroix, D., (2011). “Finite-difference time-domain and near-field-to-far- field transformation in the spectral domain: Application to scattering objects with complex shapes in ...
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Relativistic treatment of harmonics from impurity systems in quantum wires
... the dipole approximation in this ...this approximation has to hold over the full spatial range in which the Fermion fol- lows the electric ...
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High-energy, short-duration bursts of coherent terahertz radiation from an embedded plasma dipole
... the dipole block ...the dipole are locked in a single ...the dipole size is smaller than the radiation wavelength (2πc/ω p ), the phase-locked current leads to coherent radiation, ...
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A Broadband ±45° Dual-Polarized Magneto-Electric Dipole Antenna for 2G/3G/LTE/5G/WiMAX Applications
... In this paper, a new broadband ± 45 ◦ dual-polarized magneto-electric dipole antenna for base station applications is proposed. The antenna exhibits wide impedance bandwidth, high input port isolation, stable ...
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Wideband Vertical Planar Printed Unidirectional Antenna
... A new wideband vertical planar printed unidirectional antenna composed of a bowtie electric dipole and a loop antenna has been designed, fabricated and tested. A microstrip-to-coplanar stripline is used as a balun ...
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Gamma Ray Spectrometry and Induced Polarization Studies for El Atshan II Uranium Prospect Area, Central Eastern Desert, Egypt
... the dipole length of 20 m and to follow the expected mineralization at more depths, IP measurements were conducted along the same profile with a dipole length of 40 ...
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Modified dipole dipole interaction and dissipation in an atomic ensemble near surfaces
... coherent dipole-dipole interactions and the incoherent scattering of photons from a pair of atoms, impacting therefore the collective properties in an ensemble of many ...atomic dipole moments with ...
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Hydrogeochemical Geometry of Subsurface Layers in Odo-Oba Town, Southwestern Nigeria
... Abstract-- Groundwater occurrence and its chemical features inbasement aquifers are often products of localized geological controls and structure. This study was aimed at delineating zones of groundwater occurrence in ...
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The Dipole Impedance of an Aperture
... One source of error in previous attempts [5] is the symmetric (dot) product definition which introduces units of area. Combined with normalizations chosen based upon this symmetric product, the resulting aperture ...
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Ground Magnetic, GPR, and Dipole Dipole Resistivity for Landfill Investigation
... and dipole-dipole resistivity profiling were conducted in the study area to characterize the contents of the landfill, moreover, specify any possible leakage and/or conta- mination (Figure ...and ...
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Design of Printed Dipole Array for Omnidirectional Radiation Pattern
... DOI: 10.4236/wet.2019.102002 33 Wireless Engineering and Technology The 4-dipole array presents better performances in term of ripple in the xoy plane. Theses arrays are very compact with a diameter of 60 mm with ...
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