Fabry-Perot interferometer for atmospheric HCl and CH4 remote sensing

A mathematical model (MAES) that simulates the output signal of an instrumental prototype based on a Fabry-Perot interferometer which could be employed to measure atmospheric HCl was made. Through this, it was possible to optimize the instrument performance by appropriately choosing the branch, the number of the measured absorption lines and the plate reflectivity. It was found that the best configuration was one in which three absorption lines and 90% reflective FPI were combined.