Abstract
The most general response of a small dipolar particle to electromagnetic fields is determined not by its electric and magnetic polarizabilities only but also by magnetoelectric coupling coefficients. We are interested in creating particles with engineered magnetoelectric coupling of nonreciprocal nature, including artificial "moving particles." Recently, it has been shown theoretically that using small nonreciprocal bianisotropic particles, one can realize perfect electromagnetic isolators, nonreciprocal twist polarizers, one-way transparent sheets, and other devices. This paper is a necessary step towards these applications. For two electrically small nonreciprocal scatterers, an analytical electromagnetic model of polarizabilities is developed. Both particles are bianisotropic: the so-called Tellegen omega particle and moving chiral particle. Analytical results are compared to the full-wave numerical simulations. Both models satisfy to main physical restrictions and leave no doubts in the possibility to realize these particles experimentally.
| Original language | English (US) |
|---|---|
| Article number | 034005 |
| Journal | Physical Review Applied |
| Volume | 1 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 28 2014 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy