Scattering properties of a PT dipole

0484775 - ÚFE 2018 RIV US eng J - Článek v odborném periodiku
Staliunas, K. - Markoš, P. - Kuzmiak, Vladimír
Scattering properties of a PT dipole.
Physical Review A. Roč. 96, č. 4 (2017), č. článku 043852. ISSN 2469-9926. E-ISSN 2469-9934
Grant CEP: GA ČR(CZ) GA16-00329S
Institucionální podpora: RVO:67985882
Klíčová slova: Scattering field * Electromagnetic response * Refractive index
Obor OECD: Electrical and electronic engineering
Impakt faktor: 2.909, rok: 2017

Electromagnetic response of a PT dipole is studied both analytically and numerically. In the analytical approach, the dipole is represented by two point scatterers. Within the first Born approximation, the asymmetry of the scattering field with respect to the orientation of the dipole is proven. In numerical simulations, the dipole is represented by two infinitely long, parallel cylinders with opposite sign of the imaginary part of a refractive index. Numerical data confirm the validity of the Born approximation in the weak scattering limit, while significant deviations from the Born approximation were observed for stronger scatterers and in the near-field range
Trvalý link: http://hdl.handle.net/11104/0279921