Complex refractive index and dielectric function

In this movie, complex refractive index and dielectric function, and their mutual relation is explained. The former determines the optical property of the material whereas the latter represents the response of the material to electromagnetic fields.
0:00 Introduction
1:05 Complex refractive index
5:54 Normal reflectance of the incident light by the material
9:45 Reflectivity and its polarization dependence of the material
13:23 Incident-angle and polarization dependence of the reflectance
16:50 Relation between the dielectric function and refractive index
22:07 Why can we relatively neglect the effect of the magnetic field with high frequency?
24:30 Mathematical nature of dielectric function, complex electric susceptibility
30:05 Kramers-Kronig relations

In this movie, the explanations are given in English by the non-native speaker Japanese, Akira Sekiyama, Professor in Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Japan.

Short CV of Prof. Akira Sekiyama
1992 B.S., Physics, University of Tokyo, Japan
1994 M.S., Physics, University of Tokyo, Japan
1997 Ph.D., Physics, University of Tokyo, Japan
Thesis: Strongly correlated electronic states in organic conductors DCNQI-Cu and BEDT-TTF salts studied by high-resolution photoemission spectroscopy

1997 Research Associate, Graduate School of Engineering Science, Osaka University, Japan
2009 Professor, Graduate School of Engineering Science, Osaka University, Japan

BGM: Start of the Day (Composed by shimtone)

#Light #Electromagnetism #RefractiveIndex #DielectricFunction #KramersKronig #Reflectivity