Abstract :
in this research paper a two dimensional photonic crystal which is based on biosensor. The structure of biosensor consists a nano cavity with a linear waveguide which is useful for sensing purpose, their refractive index changes according to their sensing material. Here the plane wave expansion method is used to find out the bandgap. For the purpose input wavelength is 1550nm and structure bandgap is 1339 to 1981nm. By using finite difference time domain (FDTD) method. The simulation result have analyzed.
Keyword :
two dimensional photonic crystal,nano cavity , finite difference time domain (FDTD)