Semiconductor Metamaterials: Part One, Volume 116 in a two-part series surveys the state-of-the-art in material platforms for optical metasurfaces. Chapters cover Metasurfaces from materials with 2nd-order nonlinearity, Light Emitting Metasurfaces based on Direct Bandgap Semiconductors, Tunable Metasurfaces enabled by Phase-Change Materials, Phase-Transition Materials for Thermal Tuning of Metasurfaces, Tunable Metasurface Devices based on Soft Matter, Infrared Metasurfaces, Polarization Sensing Platforms, UV/ Visible Metasurfaces, and Metasurfaces for Catalysis & Chemistry. Provides the most important aspects of the semiconductor materials platforms that are used for optical metasurfaces Considers both static and dynamic metasurfaces Covers the entire EM spectrum, from UV to visible and IR light