dielectric function
dielectric function
A function that expresses the dielectric constant of a substance as a function of frequency. In general, the "dielectric function" is expressed to be a complex quantity as a function of frequency and wave number vector. From the dielectric function, optical properties of a substance (such as refractive index and reflectivity as a function of frequency) are derived. From an EELS spectrum, the loss function is obtained which is proportional to the imaginary part of the reciprocal of the complex dielectric function.
Related Term(s)
Term(s) with "dielectric function" in the description
Are you a medical professional or personnel engaged in medical care?
No
Please be reminded that these pages are not intended to provide the general public with information about the products.
