Cherenkov Emission Generated by a Modulated Source in 2D Dispersive Photonic Crystal Slabs

Figure 6

(Color on line) the spatial shape of field component for particle that moves at different speeds and modulated frequencies. (a) , . (b) , . (c) , . (d) , . (a), (c) Oscillations are very similar when , and we observe the same amplitude. (b), (d) The oscillations do not correspond to the positions of the holes in the structure, and this is due to the modulation of the source. The number of oscillations and amplitude of has dependence of .

(a)

(b)

(c)

(d)