Trompeter Henrike, Krolikowski Wieslaw, Neshev Dragomir N, Desyatnikov Anton S, Sukhorukov Andrey A, Kivshar Yuri S, Pertsch Thomas, Peschel Ulf, Lederer Falk
Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia.
Phys Rev Lett. 2006 Feb 10;96(5):053903. doi: 10.1103/PhysRevLett.96.053903. Epub 2006 Feb 9.
We report on the first experimental observation of photonic Bloch oscillations and Zener tunneling in two-dimensional periodic systems. We study the propagation of an optical beam in a square lattice superimposed on a refractive index ramp. We observe oscillations of the beam inside the first Brilloin zone and tunneling of light from the first to the higher-order bands of the lattice band gap spectrum.
我们报道了二维周期系统中光子布洛赫振荡和齐纳隧穿的首次实验观测结果。我们研究了叠加在折射率斜坡上的方形晶格中光束的传播。我们观测到光束在第一布里渊区内的振荡以及光从晶格带隙谱的第一带到高阶带的隧穿。