Resonance induced by a bound state in the continuum in a two-level nonlinear Fano-Anderson model

被引：29
|
作者：
Bulgakov, Evgeny N. [1 ]
Sadreev, Almas F. [1 ]
机构：
[1] Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
来源：
PHYSICAL REVIEW B | 2009年 / 80卷 / 11期
关键词：
TRANSMISSION;
D O I：
10.1103/PhysRevB.80.115308
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We consider the transmission through a nonlinear media in the framework of a two-level nonlinear Fano-Anderson model. The model is realized in photonic crystal waveguide coupled with two off-channel defects with the instantaneous Kerr-type nonlinearity. We reveal a resonance and argue that it is a result of excitement of bound state in the continuum (BSC) by transmitted wave. The resonance induced by BSC is located at the energy of BSC with a width proportional to the amplitude of incident wave. The BSC exists at any distance between energy levels of the two-level nonlinear Fano-Anderson model that is fundamentally different from the linear case.
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页数：7
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