BibTeX:

@article{IJIRSTV1I3020,
     title={To Calculate Band Gap in Photonic Crystal in 2D using Finite Difference Time Domain Method },
     author={Amanpreet Kaur and Dr.Amandeep Singh Sappal},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={3},
     pages={58--60},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I3020.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

The band gap for 2D PhC with different modes and different lattice structures using FDTD have been computed. Three PBGs between the first and the second bands, between the second and the third bands and between the fourth and fifth bands are concluded. Simulation results shows that for band structure computation is of 1D PhC using FDTD, it is found that some additional solutions appear, which are drop out from the general set. They are called spurious solutions. Such solutions appear due to space discretization and because of finite solution time interval and these could be eliminated manually

Eigen vector, Finite-difference time-domain, Helmholtz euation, Photonic Band Gap, Photonic Crystal