Mingaleev Sergei F, Miroshnichenko Andrey E, Kivshar Yuri S
VPI Development Center, Belarus High Technologies Park, Minsk, Belarus.
Opt Express. 2008 Jul 21;16(15):11647-59. doi: 10.1364/oe.16.011647.
We study the resonant transmission of light in a coupled-resonator optical waveguide interacting with two nearly identical side cavities. We reveal and describe a novel effect of the coupled-resonator-induced reflection (CRIR) characterized by a very high and easily tunable quality factor of the reflection line, for the case of the inter-site coupling between the cavities and the waveguide. This effect differs sharply from the coupled-resonator-induced transparency (CRIT)--an all-optical analogue of the electromagnetically-induced transparency--which has recently been studied theoretically and experimentally for the structures based on micro-ring resonators and photonic crystal cavities. Both CRIR and CRIT effects have the same physical origin which can be attributed to the Fano-Feshbach resonances in the systems exhibiting more than one resonance. We discuss the applicability of the novel CRIR effect to the control of the slow-light propagation and low-threshold all-optical switching.
我们研究了光在与两个几乎相同的侧腔相互作用的耦合谐振器光波导中的共振传输。对于腔与波导之间的位点间耦合情况，我们揭示并描述了一种由耦合谐振器诱导反射（CRIR）产生的新效应，其特征在于反射线具有非常高且易于调谐的品质因数。这种效应与耦合谐振器诱导透明（CRIT）——电磁诱导透明的全光类似物——截然不同，后者最近已针对基于微环谐振器和光子晶体腔的结构进行了理论和实验研究。CRIR和CRIT效应具有相同的物理起源，这可归因于具有多个共振的系统中的法诺 - 费什巴赫共振。我们讨论了新型CRIR效应在控制慢光传播和低阈值全光开关方面的适用性。
