4 papers
Hot spots in near-field optics
A. M. Ignatov, V. P. Poponin
We investigate the critical points of the near field intensity. It is shown that there are no local maxima of the intensity outside dielectric surfaces and the only possible critic…
Surface-active dust in a plasma sheath
A. M. Ignatov, P. P. J. M. Schram, S. A. Trigger
The inhomogeneity of the plasma pressure near a conducting electrode is a cause for introducing the surface tension associated with the plasma-electrode interface. We evaluate the…
The Gravitational Cherenkov Radiation
A. M. Ignatov
An example of discontinuity of the energy-momentum tensor moving at superluminal velocity is discussed. It is shown that the gravitational Mach cone is formed. The power spectrum o…
On the role of mass growth in dusty plasma kinetics
A. M. Ignatov, S. A. Trigger
It is shown that absorption of ions by the dust grain may reduce the effective translational temperature of the dust component below the ambient gas temperature.