We address two-dimensional (2D) waveguide arrays where light tunneling into neighboring waveguides may be effectively suppressed by an out-of-phase harmonic modulation of the refractive index in neighboring waveguides at suitable frequencies. Genuine 2D features, such as anisotropic diffraction engineering, diffraction-free propagation along selected directions in the transverse plane, and tunneling inhibition for multichannel vortices, are shown to occur.
© 2009 Optical Society of America
Original Manuscript: June 2, 2009
Revised Manuscript: August 8, 2009
Manuscript Accepted: August 16, 2009
Published: September 17, 2009
Y. V. Kartashov, A. Szameit, V. A. Vysloukh, and L. Torner, "Light tunneling inhibition and anisotropic diffraction engineering in two-dimensional waveguide arrays," Opt. Lett. 34, 2906-2908 (2009)