Dopamine sensing by the aid of Tamm plasmon in one dimensional photonic crystal

The presence of different concentrations of dopamine can be a reason for the health or unhealthiness of some parts of the body. In this research, a sensor is made based on the plasmon theme phenomenon in one-dimensional photonic crystal. For this purpose, one-dimensional photonic crystal was fabricated by electron gun method and the sample was exposed to different concentrations of dopamine with the help of microfluidic channel. The results of measuring the theme mode displacement in the sample with different polarizations and dopamine concentrations show a sensitivity of 16.96 nm per concentration.