Abstract
A biosensor is a device used by binding mechanism to detect the analytes or particle of a sample. A two-dimensional photonic crystal linear waveguide based biosensor is designed with a nano cavity. The sensing mechanism is depending on change in refractive index of the analytes, leading to a shift in the transmission. In this paper, a two-dimensional photonic crystal nano cavity based biosensor is proposed and designed to detect the cervical cancer through cytoplasm and nucleus in the cell. The bandgap calculation is done by Plane wave expansion method (PWE) which is determine the band gap in photonic crystal structure which provides the information related to the wavelength. The band gap of proposed biosensor is 1909 nm to 1302 nm, and input wavelength of 1550nm. The simulation results have analyzed by using the finite difference time domain (FDTD) method.
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