L V Kirensky Institute of Physics, 660036, Krasnoyarsk, Russia.
J Phys Condens Matter. 2013 Oct 2;25(39):395304. doi: 10.1088/0953-8984/25/39/395304. Epub 2013 Sep 4.
We show that two nonlinear resonant cavities aligned between two parallel waveguides can support self-induced bound states in the continuum (BSCs). These BSCs are symmetrical relative to an inversion of the waveguides and to inversion of the transport axis. Due to this BSCs can drop an incident wave from one waveguide to another with very high efficiency. We show also that the frequency of the efficient channel dropping can be tuned by injecting power. All these results are in good agreement with numerical solutions of the Maxwell equations in a two-dimensional photonic crystal of GaAs rods holding two parallel waveguides and two defects made of a Kerr medium.
我们展示了两个位于两个平行波导之间的非线性谐振腔可以支持连续体中的自诱导束缚态（BSC）。这些 BSC 相对于波导的反转和传输轴的反转是对称的。由于这个原因，BSC 可以将入射波从一个波导非常高效地转移到另一个波导。我们还表明，通过注入功率可以调节有效信道衰减的频率。所有这些结果都与二维砷化镓棒光子晶体中麦克斯韦方程组的数值解很好地吻合，该晶体中包含两个平行波导和两个由 Kerr 介质制成的缺陷。
