Observation of coherent destruction of tunneling and unusual beam dynamics due to negative coupling in three-dimensional photonic lattices.
We demonstrate coherent destruction of tunneling (CDT) in optically induced three-dimensional photonic lattices. By fine-tuning the lattice modulation, we show unusual behavior of beam propagation, including light tunneling inhibition, anomalous diffraction, and negative refraction mediated by zero or negative coupling in the waveguide arrays. Image transmission based on CDT is also proposed and demonstrated. Our experimental results are in good agreement with our theoretical analyses.
Zhang
Peng
P
Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA.
Efremidis
Nikolaos K
NK
Miller
Alexandra
A
Hu
Yi
Y
Chen
Zhigang
Z