Figure 3
Phase changes for the main components along the propagation direction.
(a) The spatial Fourier spectrum of the original field data reveals several spatial frequencies: F0, F2 and F3. The insets present the electrical field distributions of the incident wave, E1 and E2, at adjacent times, corresponding to F0, F1 and F2, the black lines shos field distribution at one moment, the blue lines shows the field distribution for the previous time and the red lines shows the field distribution for the later time. (b,c) Spatial field distributions recorded along the light path as light passes through the LH-PhC and RH-PhC, The red arrows indicate the interfaces between the PhC and air. In the LH-PhC, the phase evolutions on either side of the interfaces are opposite. In the RH-PhC, the phase evolutions on either side are the same and the insets show light propagating through the LH- PhC and RH- PhC. The black dotted lines denote the interface between the PhC and air.
