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- Physics 1
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121
Coupling of Photonic Crystal Surface Modes
Published 2022-01-01“…Surface modes are identified through supercell band structure computations, while their excitation by the electromagnetic waves through a perpendicular insertion waveguide is demonstrated using finite-difference time-domain simulations. …”
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122
Asymptotic Analysis of Transverse Magnetic Multiple Scattering by the Diffraction Grating of Penetrable Cylinders at Oblique Incidence
Published 2011-01-01“…We have presented a derivation of the asymptotic equations for transverse magnetic multiple scattering coefficients of an infinite grating of penetrable circular cylinders for obliquely incident plane electromagnetic waves. We have first deducted an “Ansatz” delineating the asymptotic behavior of the transverse magnetic multiple scattering coefficients associated with the most generalized condition of oblique incidence (Kavaklıoğlu, 2000) by exploiting Schlömilch series corresponding to the special circumstance that the grating spacing is much smaller than the wavelength of the incident electromagnetic radiation. …”
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123
Research Progress on Applications of Metasurface-Based Optical Image Edge Detection Technology
Published 2025-01-01“…Owing to their precise control over the phase, amplitude, and polarization state of electromagnetic waves, metasurfaces offer a novel approach to edge detection that not only overcomes the size limitations of traditional optical devices but also significantly enhances the flexibility and efficiency of image processing. …”
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124
Wireless Channel Model Based on Ray Tracing Algorithm in the Sea Environment
Published 2024-01-01“…The effects of the different sea conditions, frequencies, and distances on the propagation of electromagnetic waves are analyzed on the basis of this model.…”
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125
Flexible terahertz beam manipulation and convolution operations in light-controllable digital coding metasurfaces
Published 2025-02-01“…We also achieve dynamic modulation of vortex electromagnetic waves based on wireless light-controllable coding metasurfaces. …”
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126
RADAR-BASED DETECTION AND RECOGNITION METHODOLOGY OF AUTONOMOUS SURFACE VEHICLES IN CHALLENGING MARINE ENVIRONMENT
Published 2024-03-01“…By strategically changing the polarization of the emitted and received electromagnetic waves, the resulting echo energy dissipation matrix is determined. …”
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127
Propagation of Nonlinear Dust-Acoustic Waves in a Self-Gravitating Collision Magnetized Dusty Plasma in Earth’s Magnetosphere
Published 2023-01-01“…It has been found that there can be a relationship between the appearance of soliton waves and electromagnetic waves, as well as between shock-like waves and periodic travelling waves. …”
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128
Structural Design of Hybrid Fillers in a Polymer Matrix for Advanced Electromagnetic Interference Shielding
Published 2025-02-01“…The rapid development of modern advanced electronic systems has created a pressing need for multifunctional polymer composites that can withstand external adversities such as electromagnetic waves, flames, and mechanical stresses. Although these requirements can be satisfied by incorporating different types of fillers, high filler loadings often lead to issues such as poor processability and increased material costs. …”
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129
Design of amplifying information metasurface for enhancing signal coverage
Published 2022-12-01“…Traditional information metasurfaces can be used in wireless relay systems to control the propagation direction of electromagnetic waves due to their capability to control the amplitude and phase.However, owing to the lack of signal amplification function, these metasurfaces have a limited operating distance.Thus, a large size of metasurfaces is usually demanded to realize the signal coverage of dead zones.To solve this problem, an amplifying information metasurface was designed to realize the 2 bit phase manipulation and signal amplification function within the broad band from 2.7 to 3.1 GHz.Furthermore, a power dividing and combining network was introduced to combine the 1×8 metasurface elements into an array with only one amplifier, which greatly reduced the number of amplifiers, the hardware cost, and the power consumption.The simulation results indicate that the array can realize beamforming and signal amplification over a broad band.Therefore, the proposed amplifying information metasurface array may find important applications in wireless relay systems and provide a new solution to enhancing the signal coverage and reducing the size of the metasurface array.…”
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130
Spatial localization and diffusion of Dirac particles and waves induced by random temporal medium variations
Published 2025-01-01“…While most research has focused on electromagnetic waves, studies on Dirac-type waves remain limited. …”
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131
GPR in Damage Identification of Concrete Elements—A Case Study of Diagnostics in a Prestressed Bridge
Published 2024-12-01“…Utilizing high-frequency electromagnetic waves, GPR accurately detects and maps anomalies within hardened concrete, enabling precise identification of defect locations and their dimensions. …”
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132
An analytical investigation of nonlinear time-fractional Schrödinger and coupled Schrödinger–KdV equations
Published 2025-03-01“…These equations model various wave phenomena, including dust-acoustic waves, electromagnetic waves, and Langmuir waves, in plasma physics. …”
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133
High-Q Resonances Induced by Toroidal Dipole Bound States in the Continuum in Terahertz Metasurfaces
Published 2025-01-01“…The radiation mode of the interaction between electromagnetic waves and materials has always been a research hotspot in nanophotonics, and bound states in the continuum (BICs) belong to one of the nonradiative modes. …”
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134
Wind Turbine Clutter Mitigation in Coastal UHF Radar
Published 2014-01-01“…Coastal UHF radar provides a unique capability to measure the sea surface dynamic parameters and detect small moving targets, by exploiting the low energy loss of electromagnetic waves propagating along the salty and good conducting ocean surface. …”
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135
New dimension in vortex electro-magnetic wave transmission with orbital angular momentum
Published 2022-06-01“…Conclusion:In response to the controversy on whether OAM electromagnetic waves can provide the new dimension for the wireless transmission, this paper analyzes the physical insight of the EM wave transmission with OAM in history.It can be concluded that:both the intrinsic OAM and the extrinsic OAM can be utilized by EM waves,but only quantum OAM vortex microwave photons transmission based on intrinsic OAM can generate new dimensions in the wireless transmission besides the MIMO transmission. …”
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136
Optimization of Photonic Nanocrystals for Invisibility Using Artificial Intelligence
Published 2024-12-01“…These structures facilitate directing electromagnetic waves in specific directions and making objects invisible by creating a bandgap. …”
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137
Model of Electromagnetic Emitter Based on a Stream of Single Electrons inside Curved Carbon Nanotube
Published 2018-12-01“…The aim of the work is to find the possibility of application of injection and (quasi)ballistic drift of single electrons inside curved carbon nanotubes for emission of electromagnetic waves in the microwave range and to determine the parameters of the radiating system that affect the radiation power.By the calculation within the framework of classical electrodynamics it is shown the possibility in principle of generation of electromagnetic radiation of the gigahertz range by a stream of single electrons inside a hollow curved dielectric carbon nanotube.It was found that the spectrum and power of this radiation can be controlled by varying the electron flux density, length and curvature of the hollow nanotube.The results of the work can be applied for elaboration of a microminiature emitter of microwave electromagnetic radiation based on a curved carbon nanotube in the engineering of contactless probe microscopy.…”
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138
A Rectangular Planar Spiral Antenna for GIS Partial Discharge Detection
Published 2014-01-01“…It can expediently receive electromagnetic waves leaked from basin-type insulators and can effectively suppress low frequency electromagnetic interference from the surrounding environment. …”
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139
Electrically tunable THz graphene metasurface wave retarders
Published 2023-03-01“…Anisotropic materials with chirality or birefringence can be used to manipulate the polarization states of electromagnetic waves. However, the comparatively low anisotropy of natural materials hinders the miniaturization of optical components and devices at terahertz frequencies. …”
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140
Passive highly dispersive matching network enabling broadband electromagnetic absorption
Published 2025-01-01“…Abstract In numerous applications from radio to optical frequencies including stealth and energy harvesting, there is a need to design electrically thin layers capable of perfectly absorbing electromagnetic waves over a wide bandwidth. However, a theoretical upper bound exists on the bandwidth-to-thickness ratio of metal-backed, passive, linear, and time-invariant absorbing layers. …”
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