Ag-doped cellulose nanofibers for THz wave plates

The limited availability and environmental issues of materials resources call for the development of biodegradable devices, which also applies to THz devices. Here, we present our work developing THz wave-plates based on cellulose nanofibers and Ag nanomaterials. Emphasis is put on optimizing the wave plate efficiency based on the arrangement and orientation of the nanofibers and the type and concentration of Ag nanoparticles.