Controlling Terahertz Surface Plasmon Properties on a Periodically Structured Silicon Surface

Figure 1

(a) Schematic of a heavily doped silicon surface structured with vertical rectangular structures. In the beginning, a rectangular shaped groove is designed to couple the incoming broadband terahertz radiation to the patterned surface. The inset shows a bigger view of a portion of the patterned waveguide with all the parameters defined. (b) It shows a scanning electron micrograph of a portion of the patterned waveguide comprising vertical structures.

(a)

(b)