Optical analogue of electronic Bloch oscillations
Optical analogue of electronic Bloch oscillations
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DOI：
10.1103/physrevlett.91.263902
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发表时间：
2003-12-31
影响因子：
8.6
通讯作者：
Pavesi, L
中科院分区：
文献类型：
--
作者：
Sapienza, R;Costantino, P;Pavesi, L
我们报告了通过周期性介电系统的光传输中布洛赫振荡的观察。通过沿着传播方向引入线性折射率梯度，获得了 Wannier-Stark 梯的光学等效物。布洛赫振荡被观察为传输中的时间分辨振荡，与导电晶体中的电子布洛赫振荡直接类比，其中通过外部电场获得万尼尔-斯塔克梯。观察到的振荡行为与传递矩阵计算非常一致。
We report on the observation of Bloch oscillations in light transport through periodic dielectric systems. By introducing a linear refractive index gradient along the propagation direction the optical equivalent of a Wannier-Stark ladder was obtained. Bloch oscillations were observed as time-resolved oscillations in transmission, in direct analogy to electronic Bloch oscillations in conducting crystals where the Wannier-Stark ladder is obtained via an external electric field. The observed oscillatory behavior is in excellent agreement with transfer matrix calculations.