Research / 2019 / Article / Fig 3

Review Article

Pseudospin-1 Physics of Photonic Crystals

Figure 3

Transmissions calculated for a PC sandwich structure (red open circles), using (21) (blue solid line) and for Dirac electrons in graphene (green dotted line). The photonic potential and group velocity in (21) are obtained from the PC sandwich structure shown in Figure 2(b), and the reduced frequency is taken to be . For Dirac electrons, the electron energy satisfies while potential height meets , with being the Fermi velocity of Dirac electrons. The barrier width is .