Twin core photonic crystal fiber refractive index sensor for early detection of blood cancer

This paper presents a twin-core photonic crystal fiber (TC-PCF) for early detection of blood cancer based on refractive index (RI) of the normal and cancerous blood cell. The samples of the normal and cancerous cells are considered at 30-70% and 80% in liquid form, respectively, and proposed to be infiltrated into the center air hole which is comparatively larger than the others. By considering the refractive index (RI), the change in the coupling length and transmitted spectrum of the proposed TC-PCF for the normal and cancerous cells is observed by using the finite element method (FEM). According to the transmitted spectrum shift, the proposed sensor can exhibit a large sensitivity of 8571.43 nm/RIU. Owing to simple detection mechanism, the proposed TC-PCF sensor can be used for blood cancer detection effectively and cheaply.