Optical Bloch oscillations in temperature tuned waveguide arrays

被引：512
作者：
Pertsch, T
Dannberg, P
Elflein, W
Bräuer, A
Lederer, F
机构：
[1] Fraunhofer Inst Angew Opt & Feinmech, D-07745 Jena, Germany
[2] Univ Jena, Inst Festkorpertheorie & Theoret Opt, D-07743 Jena, Germany
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.83.4752
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the observation of optical Bloch oscillations in waveguide arrays. The required linear variation of the propagation constant across the thermo-optic polymer array was obtained by applying a temperature gradient. Bloch oscillations manifesting themselves as transverse oscillations of the propagating light beam can be attributed to the existence of localized states (Wannier-Stark states) with equidistant eigenvalue spacing (Wannier-Stark ladder). The period and amplitude of the oscillations can be controlled by varying the temperature gradient.
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页码：4752 / 4755
页数：4
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