Improving the performance of acoustic invisibility with multilayer structure based on scattering analysis
Cai Chen1, Yuan Yin2, Kan Wei-Wei3, Yang Jing1, Zou Xin-Ye1, †,
       

Relation between the total scattering cross section ratio and the dissipation factor, where σ0 represents the total scattering cross section of the scatter, σd denotes the total scattering cross section of the multilayer structure consisting of the scatter wrapped in a single negative lossy medium.