Wang Tao, Hu Yun-Qi, Du Chun-Guang, Long Gui-Lu
Opt Express. 2019 Mar 4;27(5):7344-7353. doi: 10.1364/OE.27.007344.
Multiple-path interference plays a fundamental role in classical and quantum physics. In this work, we propose two general schemes to realize multiple electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) in coupled microresonators and optomechanical systems. We give explicit physical descriptions and find out that these two schemes are essentially equivalent to each other. More importantly, we experimentally demonstrate both multiple EIT and EIA by coupling a microtoroid to a microsphere that supports multiple high Q optical modes with dense modes distributions. The theory fits well with the experimental results. We believe that our study and experimental results lay a foundation for realizing arbitrary multiple pathways interference in applications.
多路径干涉在经典物理和量子物理中都起着基础性作用。在这项工作中，我们提出了两种通用方案，以在耦合微谐振器和光机械系统中实现多电磁诱导透明（EIT）和电磁诱导吸收（EIA）。我们给出了明确的物理描述，并发现这两种方案本质上是等效的。更重要的是，我们通过将一个微环面与一个支持具有密集模式分布的多个高Q光学模式的微球耦合，实验验证了多EIT和EIA。理论与实验结果吻合良好。我们相信，我们的研究和实验结果为在应用中实现任意多路径干涉奠定了基础。
