Beam control and multi-color routing with spatial photonic defect modes.
We demonstrate tunable re-directing, blocking, and splitting of a light beam along defect channels based on spatial bandgap guidance in two-dimensional photonic lattices. We show the possibility for linear control of beam propagation and multicolor routing with specially designed junctions and surface structures embedded in otherwise uniform square lattices.
Wang
Xiaosheng
X
Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA.
Chen
Zhigang
Z