通过mie级数计算球体的消光截面，散射截面，吸收截面-Mie series by calculating the extinction cross section sphere, scattering cross section, absorption cross section

金属小球的米氏散射，利用matlab求解其散射截面消光截面和吸收截面-Mie scattering metal ball, using matlab to solve the scattering and absorption extinction cross-section

利用gauss公式计算掺饵光纤的吸收系数和发射系数，以此推出吸收截面和发射截面-Use gauss formula absorption coefficient and emission coefficient calculation erbium-doped optical fiber, thereby launched absorption cross section and emission cross section

采用MATLAB计算，在考虑双光子吸收截面系数是一个动态情况下的模拟情况-Using MATLAB calculated considering two-photon absorption cross section coefficient is a dynamic simulation of the situation in case