Design and development of graphene-based double split ring resonator metasurface biosensor using MgF₂-gold materials for blood cancer detection

Blood cancer is caused because of changes in DNA within blood cells and it's not genetic. The efficient and early detection of blood cancer can help in curing it. We have designed a blood cancer sensor which is detecting it fast and efficiently. The double split ring resonator gold metasurface is placed on graphene material and backed by MgF₂ substrate which makes the detection fast and effective. The overall sensitivity, FOM, Q-factor and DL are 3571 nm/RIU, 714 RIU⁻¹ value, 322 and 0.00933 RIU for the designed sensor respectively. The sensitivity is optimized by changing the different parameters like length, height of resonator, and height of MgF₂ substrate. The designed sensor also shows tunable behavior with variation in graphene potential. The electric field analysis of the sensor matches well with the obtained absorption results of the blood cancer sensor. The negative values of permittivity and permeability in the investigated wavelength range give validation of the metasurface effect in the proposed sensor. The highly efficient proposed blood cancer sensor can be used for fast-detecting biomedical devices.