Optimal Wave Field States in Disordered Environments Based on Electromagnetic Information Theory

On-demand wave field control is the key goal of wave field research, but the optimal wave field states in disordered environments are always a difficult problem. The electromagnetic information theory (EMIT) is naturally suitable to solve this problem because it takes the disordered environments into account. Here, we classify disordered environments into known and unknown categories. For the known disordered environments, we use the group T-matrix method and information mode decomposition method to get the optimal wave field states. For unknown disordered environment, we use a non-iterative operator to characterize the properties of scatters, called the D operator based on the EMIT. To further demonstrate the feasibility, we give a control method to realize these optimal wave field states. Our theory will be widely used in many promising applications, such as on-demand communication, adaptive focusing, and microforce sensing.