Dynamic control of the terahertz rainbow trapping effect based on a silicon-filled graded grating
Wang Shu-Lin1, Ding Lan1, †, Xu Wen1, 2, ‡
       

(color online) Schematic illustration of the silicon-filled graded grating (SFGG). The geometric parameters are chosen as m, m, and in our discussion. Note that x is in units of mm, and x changes from 0 to 2. Thus the variation of is from 52.94 to 57.14 m.