Dielectric Suppression Electron Polarization

Complex dielectric constant relates to transition of electrons from the valence 

Skin-resolved bond contraction, interatomic interaction, and electron-phonon coupling determine the change in the dielectric constant. 

Dielectric constant changes roughly with the square inverse of the bandgap. Dielectric constant drops with solid size or porosity enhancement. 

Lowered refractive index and absorption coefficient in skin up to three atomic layers may find application for waveguides, cavity lasing, and high reflectivity in optical devices. 

Relaxation of the Chemical Bond, Springer Series in Chemical Physics 108, DOI 10.1007/978-981-4585-21-7 18, Springer Science+Business Media Singapore 2014 

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