Negative refraction without negative index in metallic photonic crystals.
It is shown that certain metallic photonic crystals can enable negative refraction and subwavelength imaging without relying on a negative effective index. These metallic structures are very simple in design and appear straightforward for fabrication. Their unusual electromagnetic response should provide an interesting comparison with the metallic left-handed materials.
Luo
Chiyan
C
Johnson
Steven
S
Joannopoulos
J
J
Pendry
J
J