Nonlinear THz metasurface and metagrating emitters utilizing C3 meta-atoms

The THz electromagnetic spectrum (100 GHz – 10 THz, 3 mm – 30 µm) has gained widespread use and applications in a variety of diverse fields such as non-destructive testing, bio-medical imaging, security and next generation optical communications [1] , [2] . However, in order to fully exploit and optimize these applications, full control over the THz field properties is needed.