Results 41 to 50 of about 963 (185)
RELATIVISTIC STRAIN AND ELECTROMAGNETIC PHOTON-LIKE OBJECTS [PDF]
Trends in Differential Geometry, Complex Analysis and Mathematical Physics, 2009 This paper aims to relate some properties of photon-like objects, considered as spatially finite time-stable physical entities with dynamical structure, to well defined properties of the corresponding electromagnetic strains defined as Lie derivatives of the Minkowski (pseudo)metric with respect to the eigen vector fields of the Maxwell-Minkowski ...
Donev, Stoil, Tashkova, Maria
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Non-Hermitian Dirac cones with valley-dependent lifetimes
Nature CommunicationsRelativistic quasiparticles emerging from band degeneracies in crystals play crucial roles in the transport and topological properties of materials and metamaterials.
Xinrong Xie +9 more
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Dual Graphene Patch Antenna For Ka Band Satellite Applications
International Journal of Aviation, Aeronautics, and Aerospace, 2019 Currently; grapheme offers a new opportunity to use in space technology and this is due to its amazing properties like conductivity, strength, flexibility and transparency which allows us to exploit new generation of ultra-fast nanoscale components ...
Mohammed Amin Rabah, Mohammed Bekhti
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Finite element time domain method for photonics
, 2023 Time domain analysis of electromagnetics is currently dominated by the finite difference time domain (FDTD) method. Current finite element (FE) counterparts of the FDTD method are slower in execution and hard to parallelise. This chapter presents a point
Raiyan Kabir, SM +2 more
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On the number and spin of photons in classical electromagnetic fields [PDF]
Physica Scripta, 2019 Abstract A relativistically invariant expression for the number of photons in a free classical electromagnetic field through the currents, that created the field, is derived based on the formula for the total energy–momentum of the field. It is demonstrated that it corresponds to the classical limit of the photon number operator known
R M Feshchenko, A V Vinogradov
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High-quality object reconstruction based on ghost imaging [PDF]
2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), 17-20 December 2019, Xiamen, China202403 bckwAccepted ManuscriptRGCOthersNational Natural Science Foundation of China (NSFC); Shenzhen Science and Technology Innovation ...
Xiao, Y, Zhou, L, Chen, W
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Communications PhysicsSpatial Kramers-Kronig (KK) media offer a possible route to obtain omnidirectional light absorption within a thin layer of material. However, the experimental realizations are typically limited to a specific polarization, i.e., either transverse electric
Quanping Li +6 more
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Cell-Based Domain Decomposition for Metasurface Antennas Design
IEEE Open Journal of Antennas and PropagationMetasurface design methods typically follow a two-stage approach based on the (surface) Impedance Boundary Condition (IBC) approximation of the macroscopic behaviour of the metasurface.
Leonardo Pollini +2 more
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Computational electronics and electromagnetics [PDF]
, 1997 The Computational Electronics and Electromagnetics thrust area at Lawrence Livermore National Laboratory serves as the focal point for engineering R&D activities for developing computer-based design, analysis, and tools for theory.
Shang, C. C.
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Electromagnetic waves and photons
, 2015 We explore how the thermal ground states of two mixing and pure SU(2) Yang-Mills theories, SU(2)$_{\tiny\mbox{CMB}}$ of scale $Λ_{\tiny\mbox{CMB}}\sim 10^{-4}\,$eV and SU(2)$_{e}$ of scale $Λ_{e}\sim 5\times 10^5\,$eV, associate either wave or particle aspects to electromagnetic disturbances during thermalisation towards the photon gas of a blackbody ...
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