光吸收介质的吸收系数与介电函数虚部的关系  

The imaginary part of dielectric function and the absorption coefficient

作　　者：樊洁平[1] 刘惠民[1] 田强[1] 

机构地区：[1]北京师范大学物理系,北京100875

出　　处：《大学物理》2009年第3期24-25,共2页College Physics

基　　金：教育部国家理科基地创建名牌课程项目和北京市精品课程建设项目资助

摘　　要：讨论了相对介电函数虚部和消光系数与光吸收的关系,指出吸收系数与消光系数成正比,而吸收系数与相对介电函数虚部成正比是有条件的.The relations between absorption coefficient and the imaginary part of dielectric function, and between absorption coefficient and extinction coefficient, are discussed. The absorption coefficient is proportional to extinction coefficient. But it is not always that the absorption coefficient is proportional to the imaginary part of dielectric function.

关 键 词：介电函数 消光系数 吸收系数 

分 类 号：O482[理学—固体物理]