A comparative study of saline and non-saline water in application of tomato yield by using photonic sensor

A sensor based on 2D photonic crystal is proposed and designed in present work. Here the sensor can measure the small changes in dielectric constant of the samples. As the refractive index for fresh water and saline water varies, the sensor can easily differentiate between saline and non-saline water. The sensor is a Dual-hexagonal shaped Photonic crystalring resonator (PCRR) structure composed of Si rods embedded in air medium. Here the Photonic crystal is designed and modeled by using MIT electromagnetic equation propagation tool. Analysis is done using Finite Difference Time Domain (FDTD) method. The transmission spectrum is obtained after the simulation. From this spectrum, it is observed that there is a shift output in frequency and transmitted power. Hence it acts as a sensor.