Bound States in the Continuum in a Quantum-Mechanical Waveguide with a Subwavelength Resonator

被引:6
作者
Shubin, N. M. [1 ]
Kapaev, V. V. [1 ]
Gorbatsevich, A. A. [1 ]
机构
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
基金
俄罗斯科学基金会;
关键词
TRAPPED MODES; RESONANCES; ELECTRON;
D O I
10.1134/S0021364022601373
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It has been shown that a bound state in the continuum of a symmetric quantum-mechanical waveguide with a resonator can be formed at an arbitrarily short length of the resonator. This effect is due to multimodal interference; therefore, it cannot be explained in the simplest two-mode approximation in the Friedrich-Wintgen model and requires the inclusion of at least three modes. The results obtained within the analytical model have been confirmed by the numerical simulation of the stubbed waveguide the attractive potential of the impurity in the resonator.
引用
收藏
页码:205 / 211
页数:7
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