Abstract
Abstract A compact optical switch concept based on moving a negative-index media (NIM) load is extended here to include waveguides carrying transverse magnetic (TM) modes. Many current metamaterial NIM implementations work with TM waves. Simulations show that with a current metamaterial NIM implementation switching is possible for TM modes. The simulated switch structure is based on an optical waveguide coupler made by a commercial foundry process. The NIM load is realized above the waveguides in a post foundry micro-electro mechanical systems (MEMS) layer. Metal loads are also shown to be suitable for switching TM modes. However, only NIM loads can in theory permit simultaneous switching of both transverse electric and TM modes.
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