Integrated p-i-n-structures designed for mm and submm wave quasi-optical modulators

Theoretical and experimental investigations of integrated p-i-n structures designed for quasi-optical millimeter and submm modulators in oversized waveguides are presented. These structures possess the transparency in this regime without injection and good operational characteristics in presence of injecting current. Also a possibility to control the transverse structure of initial beam by means of nonuniform injection current is numerically demonstrated.