Visualization of coherent destruction of tunneling in an optical double well system

被引:139
作者
Della Valle, G.
Ornigotti, M.
Cianci, E.
Foglietti, V.
Laporta, P.
Longhi, S.
机构
[1] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
[2] Politecn Milan, CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy
[3] CNR, Ist Foton & Nanotecnol, Sez Roma, I-00156 Rome, Italy
关键词
D O I
10.1103/PhysRevLett.98.263601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on a direct visualization of coherent destruction of tunneling (CDT) of light waves in a double well system which provides an optical analog of quantum CDT as originally proposed by Grossmann, Dittrich, Jung, and Hanggi [Phys. Rev. Lett. 67, 516 (1991)]. The driven double well, realized by two periodically curved waveguides in an Er:Yb-doped glass, is designed so that spatial light propagation exactly mimics the coherent space-time dynamics of matter waves in a driven double well potential governed by the Schrodinger equation. The fluorescence of Er ions is exploited to image the spatial evolution of light in the two wells, clearly demonstrating suppression of light tunneling for special ratios between the frequency and amplitude of the driving field.
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页数:4
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