Table 1: Photonic band gap and normalized frequency and its corresponding wavelength of the proposed structure.

S. numberPBGNormalized frequency (/λ)Wavelength (nm)

1TM PBG0.31–0.4451258–1806
0.588–0.6455867–952
0.768–0.778729–719

2TE PBG0.923–0.934599–606
0.825–0.835670–678