Scattering-induced changes in the degree of polarization of a stochastic electromagnetic plane-wave pulse.
The scattering of a stochastic electromagnetic plane-wave pulse on a deterministic spherical medium is investigated. An analytical formula for the degree of polarization (DOP) of the scattered field in the far zone is derived. Letting pulse duration T(0) → ∞, our formula can be applied to study the scattering of a stationary stochastic electromagnetic light wave. Numerical results show that the DOP of the far zone field is closely determined by the size of the spherical medium when the incident field is a stochastic electromagnetic plane-wave pulse. This is much different from the case when the incident field is a stationary stochastic electromagnetic light wave, where the DOP of the far zone field is independent of the size of the medium. One may obtain the information of the spherical medium by measuring the scattering-induced changes in the DOP of a stochastic electromagnetic plane-wave pulse.
Department of Physics, Luoyang Normal University, Luoyang, China. dingchaoliang2006@126.com
Chaoliang
C
Ding
Yangjian
Y
Cai
Yongtao
Y
Zhang
Liuzhan
L
Pan