Designing Modes in Disordered Photonic Structures

In this chapter, we introduce the inverse design of disordered photonic structures with the target modal response. Starting from the concept of metadisorder, which is defined by order-random interactions in the multivariable parameter space, we discuss the realization of anomalous wave transport and localization in photonic structures as an example of the independent control of wave quantities. As a generalization of this approach, we introduce the concept of Bohmian photonics inspired by the alternative interpretation of quantum mechanics, which enables independent control of the amplitude and phase information of light. Various practical applications of Bohmian photonics, including optical phase trapping, phase-conserved energy confinement and annihilation, and constant-intensity wave transport, are discussed.