Patch antenna metasurface is a route towards low-power THz QC-lasers

Patch antenna metasurface is a route towards low-power THz QC-lasers

Jun 6, 2020

The heart of a QC-VECSEL is the amplifying metasurface, in which a reflectarray of antenna-coupled THz QC-gain elements with subwavelength spacing operate collectively to amplify and reflect incident THz radiation. Ordinarily, that occurs through an array of ridge...