Trompeter Henrike, Pertsch Thomas, Lederer Falk, Michaelis Dirk, Streppel Ulrich, Bräuer Andreas, Peschel Ulf
Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
Phys Rev Lett. 2006 Jan 20;96(2):023901. doi: 10.1103/PhysRevLett.96.023901. Epub 2006 Jan 18.
We experimentally investigate photonic Zener tunneling between the bands of a waveguide array by directly monitoring the propagating light inside this structure. For strong transverse index gradients we observe Zener breakdown as regular outbursts of radiation escaping from the Bloch oscillations. Tunneling to higher order photonic bands and Bloch oscillations in different bands have been detected.
我们通过直接监测波导阵列结构内部传播的光，对波导阵列能带间的光子齐纳隧穿进行了实验研究。对于强横向折射率梯度，我们观察到齐纳击穿表现为从布洛赫振荡中逸出的辐射的有规律爆发。已检测到向高阶光子能带的隧穿以及不同能带中的布洛赫振荡。
