Мобильная версия

Доступно журналов:

3 288

Доступно статей:

3 891 637

 

Скрыть метаданые

Автор Gerald Kaiser
Дата выпуска 2004-05-01
dc.description Riemann–Silberstein (RS) vortices have been defined as surfaces in spacetime where the complex form of a free electromagnetic field given by F = E+i B is null () and they can indeed be interpreted as the collective history swept out by moving vortex lines of the field. Formally, the nullity condition is similar to the definition of C-lines associated with a monochromatic electric or magnetic field, which are curves in space where the polarization ellipses degenerate into circles. However, it was noted that RS vortices of monochromatic fields generally oscillate at optical frequencies and are therefore unobservable, while electric and magnetic C-lines are steady. Here I show that, under the additional assumption of having definite helicity, RS vortices are not only steady but they coincide with both sets of C-lines, electric and magnetic. The two concepts therefore become one for waves of definite frequency and helicity. Since the definition of RS vortices is relativistically invariant while that of C-lines is not, it may be useful to regard the vortices as a wideband generalization of C-lines for waves of definite helicity.
Формат application.pdf
Издатель Institute of Physics Publishing
Копирайт IOP Publishing Ltd
Название Helicity, polarization and Riemann–Silberstein vortices
Тип paper
DOI 10.1088/1464-4258/6/5/018
Electronic ISSN 1741-3567
Print ISSN 1464-4258
Журнал Journal of Optics A: Pure and Applied Optics
Том 6
Первая страница S243
Последняя страница S245
Аффилиация Gerald Kaiser; Center for Signals and Waveswww.wavelets.com, 1921 Kings Road, Glen Allen, VA 23059, USA
Выпуск 5

Скрыть метаданые