Doppler effects of a light source on a metamaterial slab: a rigorous Green's function approach.
We apply a (rigorous) Green's function theory to study the Doppler effects of a light source placed on top of a metamaterial slab. When the receiver is in motion with the source and the slab, we find that, in addition to a conventional Doppler mode, there are several other frequency components that do not obey the standard frequency-shift rule. We show that such new effects are caused by the coupling between the radiated electromagnetic waves and the surface modes of the metamaterial slab, whose dispersion relation varies as a function of velocity in the moving reference frame.
Wang
Weihua
W
Surface Physics Laboratory and Physics Department, Fudan University, Shanghai 200433, China.
Huang
Xueqin
X
Zhou
Lei
L
Chan
C T
CT