On superluminal light spots

Barsukov, K. A.; Popov, V. N.

doi:10.1070/pu1996v039n11abeh000182

Cited by 9 publications

(2 citation statements)

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“…[15], the DR angular distribution is mainly defined by the exponential factor in formula (10). It can be readily seen that for the perpendicular geometry b x 0 the argument of this exponential function attains the minimum value À4phagbl provided the condition cos c b À1 cos c 0 Y 12a which, with account for variables (11), takes the form…”

Section: Diffraction Radiation Of a Charge For Arbitrary Geometrymentioning

confidence: 99%

“…In this paper, we consider the characteristics of superluminal CR induced by the interaction of a Coulomb field of charged particles with target atoms, namely diffraction radiation [8±10], leaving beyond the scope such exotic superluminal sources as light spots moving along the target surface [11,12]. We explore the characteristics of DR from an ideally conducting target for arbitrary angles of orientation between particle momenta and the target, i.e., for geometries that are of interest to experimenters.…”

Section: Introductionmentioning

confidence: 99%

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Diffraction radiation from a charge as radiation from a superluminal source in a vacuum

et al. 2020

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An analysis of spectral-angular characteristics of diffraction radiation, both incoherent and coherent, has been performed. It is shown that radiation processes can be interpreted as Cherenkov radiation, which is produced by a region of dynamic polarization moving along a target edge with superluminal velocity v v SL . Such radiation is generated if the condition v v SL b c is fulfilled, which is the conventional`threshold' Cherenkov condition.

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Section: Diffraction Radiation Of a Charge For Arbitrary Geometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%