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.
The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, PR China.
Jingjing
J
Zhang
Yu
Y
Luo
Hongsheng
H
Chen
Jiangtao
J
Huangfu
Bae-Ian
BI
Wu
Lixin
L
Ran
Jin Au
JA
Kong
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