Coherent Perfect Light for Organic Microdevices

这个项目的目标是探索被称为相干完美光概念的基本想法和方法。我们希望开发新的有机光子微器件的概念，其光学性质可以利用相干作为自由度在很大范围内进行调节。我们的目标是通过以相干方式调整所有入射光波的幅度、相对相位和偏振来精确控制光学过程，以优化设备性能。潜在的应用包括相干完美光的吸收和传输，相干完美光在光波导或集成平面电路中的耦合，各种临界耦合的有机薄膜器件等。只有通过设计和制造复杂的光子结构来支持所需的本征函数，才有可能对所有这些现象进行相干控制。因此，实现这一目标的一个重要方面是开发和精确控制器件结构的可能性。本项目中提出的大多数方法需要放松共振条件(例如，相干完美光耦合器)或在两个波长下进行二向色性操作(临界耦合有机激光器)，这涉及到非周期光子结构的广泛使用。由于这些都很难设计和优化，沿着标准的计算技术，如转移或散射矩阵或FDTD方法，将使用数值随机和概率方法。我们还将引入光学各向异性腔来理解k-空间中例外点的物理。在这里，光的偏振成为一个基本和关键的参数，它允许精确控制腔内的吸收，因为光学各向异性导致了传播光的手征动力学。

The goal of this project is to explore fundamental ideas and approaches known as the concept of coherent perfect light. We wish to develop concepts for novel organic photonic microdevices whose optical properties could be tuned in a wide range using coherence as a degree of freedom. We aim to precisely control the optical processes to optimize device performance by adjusting amplitudes, relative phases, and polarization of all incoming light waves in a coherent manner. Potential applications include coherent perfect light absorption and transmission, coherent perfect light incoupling into the optical waveguides or integrated planar circuits, various kinds of critically-coupled organic thin-film devices, etc.Coherent control of all these phenomena is only possible with complex photonic structures which are designed and produced on purpose to support the desired eigenfunctions. Therefore, an essential aspect of reaching the goal is the possibility to develop and precisely control the device structures. Most of the proposed approaches in this project require loosening of resonant conditions (e.g., coherent perfect light incouplers) or dichroic operation at two wavelengths (critically-coupled organic lasers), which involves extensive use of aperiodic photonic structures. Since these are difficult to design and optimize, along the standard computational techniques, such as transfer or scattering matrices or FDTD approach, numerical stochastic and probabilistic methods will be used. We will also introduce optically anisotropic cavities to understand the physics of exceptional points in k-space. Here, the polarization of the light becomes an essential and critical parameter, which allows precise control of the absorption in the cavity because of the chiral dynamics of the propagating light caused by the optical anisotropy.