Optical delay of a signal through a dispersive invisibility cloak.
We present a full-wave analysis method on the transmission of a Gaussian light pulse through a spherical invisibility cloak with causal dispersions. The spatial energy distribution of the Gaussian light pulse is distorted after the transmission. A volcano-shaped spatial time-delay distribution of the transmitted light pulse is demonstrated as a concrete example in our physical model. Both the time-delay and the energy transport depend on the polarization of light waves. This study helps to provide a complete picture of energy propagation through an invisibility cloak.
Zhang
Baile
B
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. bzhang@mit.edu
Wu
Bae-Ian
BI
Chen
Hongsheng
H
D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D016011:Normal Distribution; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation