An estimate of phonon parameters errors calculated by dispersion analysis method with help of genetic algorithm

Abstract

The basic task of mathematical processing of reflectance spectra is the calculation of the dielectric function of the substance, which describe response of a crystal to an external electromagnetic field. One of effective ways of the solution of this task is the dispersion analysis (DA). One of perspective methods of realization DA is the genetic algorithm (GA). However, as well as all numerical methods of the function optimization GA does not allow to determine the required parameters evaluation error. In this paper the procedure of estimate of this error is offered.