Results 61 to 70 of about 30,316 (228)
Cherenkov Radiation from the Quantum Vacuum [PDF]
Physical Review Letters, 2019 A charged particle moving through a medium emits Cherenkov radiation when its velocity exceeds the phase velocity of light in that medium. Under the influence of a strong electromagnetic field, quantum fluctuations can become polarized, imbuing the vacuum with an effective anisotropic refractive index and allowing the possibility of Cherenkov radiation
MacLeod, Alexander J. +2 more
openaire +5 more sources
, 2004 Within the classical Maxwell-Chern-Simons limit of the Standard-Model Extension (SME), the emission of light by uniformly moving charges is studied confirming the possibility of a Cherenkov-type effect.
I. E. Tamm +7 more
core +1 more source
Constraint on ghost-free bigravity from gravitational Cherenkov radiation [PDF]
, 2016 We investigate gravitational Cherenkov radiation in a healthy branch of background solutions in the ghost-free bigravity model. In this model, because of the modification of dispersion relations, each polarization mode can possess subluminal phase ...
Kimura, Rampei +3 more
core +2 more sources
Broadband and Tunable 920-nm Femtosecond Pulse Generated by an All-Fiber Er:Fiber Laser System
IEEE Access, 2021 Fiber-optic Cherenkov radiation (FOCR) is a promising nonlinear process that is widely used for nonlinear wavelength conversion. In this study, an all-fiber 920-nm femtosecond pulse source is experimentally demonstrated by using Cherenkov radiation.
Kai Qian +4 more
doaj +1 more source
Characteristics of Cherenkov Radiation in Naturally Occuring Ice
, 2016 We revisit the theory of Cherenkov radiation in uniaxial crystals. Historically, a number of flawed attempts have been made at explaining this radiation phenomenon and a consistent error-free description is nowhere available.
Klein, S. R. +3 more
core +1 more source
The role of energy-momentum conservation in emission of Cherenkov gluons [PDF]
, 2007 The famous formula for the emission angle of Cherenkov radiation should be modified when applied to hadronic reactions because of recoil effects. They impose the upper limit on the energy of the gluon emitted at a given angle. Also, it leads to essential
Dremin I. M. +7 more
core +1 more source
Spatial distribution of Cherenkov radiation in periodic dielectric media
, 2009 The nontrivial dispersion relation of a periodic medium affects both the spectral and the spatial distribution of Cherenkov radiation. We present a theory of the spatial distribution of Cherenkov radiation in the far-field zone inside arbitrary three ...
Bykov V P +8 more
core +1 more source
Bogoliubov-Cherenkov radiation in an atom laser [PDF]
Physical Review A, 2018 We develop a simple yet powerful technique to study Bogoliubov-Cherenkov radiation by producing a pulsed atom laser from a strongly confined Bose-Einstein condensate. Such radiation results when the atom laser pulse falls past a Bose-Einstein condensate at high-hypersonic speeds, modifying the spatial profile to display a characteristic twin jet ...
Henson, Bryce +7 more
openaire +3 more sources
Continuously-tunable Cherenkov-radiation-based detectors via plasmon index control
, 2020 A recent study [PRB 100, 075427 (2019)], finally, demonstrated plasmon-analog of refractive index enhancement in metal nanostructures, which has already been studied in atomic clouds for several decades.
Chuang, You-Lin +2 more
core +1 more source
Accelerated-Cherenkov radiation and signatures of radiation reaction
New Journal of Physics, 2019 In this manuscript we examine an accelerated charged particle moving through an optical medium, and explore the emission of accelerated-Cherenkov radiation.
Morgan H Lynch +3 more
doaj +1 more source