Discrete negative refraction in photonic crystal waveguide arrays.
We report a systematic analysis of anomalous refractive effects at interfaces between two photonic crystal waveguide arrays. Discrete negative refraction can be easily predicted from the sign of the coupling coefficient between adjacent waveguides, regardless of handedness of propagation.
Locatelli
Andrea
A
Dipartimento di Elettronica per l' Automazione, Università di Brescia, Brescia, Italy. andrea.locatelli@ing.unibs.it
Conforti
Matteo
M
Modotto
Daniele
D
De Angelis
Costantino
C