Guiding waves through an invisible tunnel.
Transformation optics provides a promising way to guide waves in the open space. It is shown that a small waveguide coated with transformation medium will behave as a big virtual tunnel connecting two waveguide ports separated faraway. The waves are transmitted and guided smoothly in the open space through this 'invisible tunnel'. The transformation medium is obtained by squeezing the space between the two ports into a small region. Numerical simulations are performed to illustrate this idea.
Zhang
Jingjing
J
The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, PR China.
Luo
Yu
Y
Chen
Hongsheng
H
Huangfu
Jiangtao
J
Wu
Bae-Ian
BI
Ran
Lixin
L
Kong
Jin Au
JA
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity