ICFO-Institut de Ciencies Fotoniques and Universitat Politecnica de Catalunya, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain.
Opt Lett. 2009 Oct 1;34(19):2906-8. doi: 10.1364/OL.34.002906.
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.
我们研究了二维（2D）波导阵列，其中通过在适当频率下对相邻波导的折射率进行异相谐波调制，可以有效地抑制光进入相邻波导的隧道效应。展示了真正的 2D 特性，如各向异性衍射工程、在横向平面中沿选定方向无衍射传播，以及多通道涡旋的隧道抑制。
