Photonic crystal-based biosensor for detection of human red blood cells parasitized by plasmodium falciparum

In this paper, a biosensors based on two-dimensional photonic crystal (2D PhC) waveguide including ring resonator is designed and simulated refractive index changes of red blood cells. The proposed biosensor structure consists an elliptical two linear waveguides containing silicon nitride rods in 2D rectangular lattice with circular rods. utilized to detect the stages Plasmodium falciparum cycle cells diagnose malaria disease. design distinguishes high sensitivity between normal infected falciparum. This very compact, gold air background works well at input central wavelengths 0.514 1.55 μm. finite-difference time-domain (FDTD) method used simulate investigate device. extremely compact which suitable for lab-on-chip applications exhibits higher both compared that previously reported sensors.