112 citations · 121 across the 11 of their papers we have counts for
11 papers
Similarities in the Initiation of Upward Positive and Downward Negative Lightning Flashes
Toma Oregel-Chaumont, Mohammad Azadifar, Antonio Šunjerga +2
This study examines the relationship between upward negative stepped leader pulses in upward positive lightning and preliminary breakdown pulses (PBPs) in downward negative lightni…
Underlying Physical Mechanisms in Upward Positive Flashes
Toma Oregel-Chaumont, Antonio Šunjerga, Jérôme Kasparian +2
This study presents the first observation of a mixed mode of charge transfer during an upward positive flash, which was initiated from the Säntis Tower in Switzerland. High-speed c…
Cartesian and spherical multipole expansions in anisotropic media
Elias Le Boudec, Toma Oregel-Chaumont, Farhad Rachidi +2
The multipole expansion can be formulated in spherical and Cartesian coordinates. By constructing an explicit map linking both formulations in isotropic media, we discover a lack o…
Physics and technology of Laser Lightning Control
Thomas Produit, Jérôme Kasparian, Farhad Rachidi +3
The recent development of high average, high peak power lasers has revived the effort of using lasers as a potential tool to influence natural lightning. Although impressive, the c…
Does light slowdown in dielectric media?
Vernon Cooray, Gerald Cooray, Farhad Rachidi +1
Observations and theoretical principles suggest that electromagnetic waves, including light, travel more slowly in dielectric media than in vacuum. Maxwell's equations, incorporati…
Direct Observations of X-Rays Produced by Upward Positive Lightning
Toma Oregel-Chaumont, Antonio Sunjerga, Pasan Hettiarachchi +3
X-rays have been observed in natural downward cloud-to-ground lightning for over twenty years and in rocket-triggered lightning for slightly less. In both cases, this energetic rad…
Hints of the Photonic Nature of the Electromagnetic fields in Classical Electrodynamics and its connection to the electronic charge and vacuum energy density
Vernon Cooray, Gerald Cooray, Marcos Rubinstein +1
The electromagnetic fields of a long dipole working without dispersive and dissipative losses are analyzed in the frequency domains. The dipole produces radiation in bursts of dura…
Laser-guided lightning
Aurélien Houard, Pierre Walch, Thomas Produit +25
Electric currents circulating between charged clouds and the earth surface during lightning discharges are responsible for considerable damages and casualties. It is therefore impo…
Hints of the Quantum Nature of the Universe in Classical Electrodynamics and Their Connection to the Electronic Charge and Dark Energy
Vernon Cooray, Gerald Cooray, Marcos Rubinstein +1
The electromagnetic fields of linear radiating systems working without dispersive and dissipative losses are analyzed both in the time and the frequency domains. In the case of the…
Could macroscopic dark matter (macros) give rise to mini-lightning flashes out of a blue sky without clouds?
Vernon Cooray, Gerald Cooray, Marcos Rubinstein +1
A recent study pointed out that macroscopic dark matter (macros) traversing through the earth's atmosphere can give rise to hot and ionized channels similar to those associated wit…
Comment on Straight lightning as a signature of macroscopic dark matter By Nathaniel Starkman, Harrison Winch, Jagjit Singh Sidhu, and Glenn Starkman
V. Cooray, G. Cooray, M. Rubinstein +1
In this short paper, we present some comments on the paper: Straight lightning as a signature of macroscopic dark matter, by Nathaniel Starkman, Harrison Winch, Jagjit Singh Sidhu,…