Large magnetooptical Kerr rotation with high reflectivity from photonic bandgap structures with defects.

We perform a theoretical study of enhancement of magnetooptical rotation on reflection of light from a periodic system with a defect. Using calculations based on a coupled mode approach and the transfer matrix method we demonstrate that an asymmetric placing of a single defect allows arbitrary Kerr rotations with better than 99% reflectivity from very short devices [ABSTRACT FROM PUBLISHER]