Results 91 to 100 of about 1,822,530 (262)

Scale‐Invariant Waveguiding in Flatland

Exploration, EarlyView.
The study introduces scale‐invariant metasurface waveguides with uniform modal field distribution and an effective index independent of the core width. By leveraging spatial symmetry and fine‐tuning mode profiles, the design is validated through near‐field measurements in the C band, offering potential applications in flat optics, sensing, and ...
Zhixia Xu, Shuo Bao, Massimo Moccia, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +5 more
wiley   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

Laser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf, Maximilian Black, Hebrew Crispin, Prabhdeep Singh, Parsa Darman, Sara Darbari, Fatemeh Chahshouri, Masoud Taleb, Nahid Talebi   +8 more
wiley   +1 more source

Spectral and amplitude-time characteristics of crystals excited by a runaway electron beam

Matter and Radiation at Extremes, 2019
The generation of runaway electrons (REs) is a significant problem in tokamak installations, causing energy loss, and melting and vaporization of the walls of the vacuum chamber.
V. F. Tarasenko, M. I. Lomaev, E. Kh. Baksht, D. V. Beloplotov, A. G. Burachenko, D. A. Sorokin, E. I. Lipatov   +6 more
doaj   +1 more source

The radiation from ultrafast point dipoles, moving uniformly near chiral media

Российский технологический журнал, 2021
The article discusses the features of the radiation of ultrafast point clusters of charged particles moving uniformly near a gyrotropic medium interface.
V. N. Kadantsev
doaj   +1 more source

Cherenkov radiation by particles traversing the background radiatio n [PDF]

, 2002
High energy particles traversing the Universe through the cosmic microwave backgroung radiation can, in principle, emit Cherenkov radiation. It is shown that the energy threshold for this radiation is extremely high and its intensity would be too low due
B. Tollis De, I. E. Tamm, I. M. Dremin, I. M. Dremin, M. L. Goldberger, M. Thoma, R. Karplus, V. A. Maisheev   +7 more
core   +2 more sources

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

Rare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang, Yunpeng Qu, Qixuan Zeng, Xiaosi Qi, Yao Liu   +4 more
wiley   +1 more source

Prospects for radio detection of extremely high energy cosmic rays and neutrinos in the Moon [PDF]

, 2001
We explore the feasibility of using the Moon as a detector of extremely high energy (>10^19 eV) cosmic rays and neutrinos. The idea is to use the existing radiotelescopes on Earth to look for short pulses of Cherenkov radiation in the GHz range emitted ...
Alvarez-Muñiz, J., Zas, E.
core   +2 more sources

Modulation of Radiative Heat Transfer at the Nanoscale via Topological Polaritons in Twisted van der Waals Crystals

Nanophotonics, Volume 15, Issue 2, 27 January 2026.
Twisted α‐MoO3 layers support phonon polaritons whose propagation depends on the twist angle, enabling control of near field radiative heat transfer. Increasing the angle yields a monotonic rise in heat flux, driven by topological transitions from open hyperbolic to closed elliptical dispersions.
Yang Hu, José Álvarez‐Cuervo, Enrique Terán‐García, Xiuquan Huang, Pablo Alonso‐González   +4 more
wiley   +1 more source

Results and prospects on registration of reflected Cherenkov light of EAS from cosmic particles above 10^{15} eV

, 2014
We give an overview of the SPHERE experiment based on detection of reflected Vavilov-Cherenkov radiation (Cherenkov light) from extensive air showers in the energy region E>10^{15} eV.
Antonov, R. A., Aulova, T. V., Bonvech, E. A., Chernov, D. V., Dzhatdoev, T. A., Finger, Mich., Finger, Mir., Galkin, V. I., Podgrudkov, D. A., Roganova, T. M.   +9 more
core   +1 more source

On gravitational wave-Cherenkov radiation from photons when passing through diffused dark matters [PDF]

, 2017
Analogy to Cherenkov radiation, when a particle moves faster than the propagation velocity of gravitational wave in matter ($v>c_{\rm{g}}$), we expect gravitational wave-Cherenkov radiation (GWCR).
Yi, Shu-Xu
core   +2 more sources