フォノニック結晶における波動伝ぱのスイッチングに関する動力学モデルの構築

抄録

A dynamical model for nonlinear wave propagation in phononic crystals is constructed. A lattice model is introduced as a discrete model of phononic crystals that consists of scatter and background material. Nonlinearity of material is considered as nonlinear mass density. In the proposed lattice model, massed of the mass points is described as a function of the local strain of the system. Nonlinear dynamics of the proposed lattice system is confirmed by numerical simulation. Moreover, frequency shift of phonon mode that is required for the switching dynamics is confirmed.