Optical Properties of Epitaxial PbSe Films
Abstract
Transmission measurements have been carried out on thin films of lead selenide in the energy range 0.5-6 eV. The thicknesses varied from 180 to 550 Å. The index of refraction and the extinction coefficient were calculated by Kramers-Kronig analysis. These show a significant divergence from earlier published values. A splitting of the 4.5-eV absorption peak is observed at low temperatures, which is attributed to spin-orbit splitting in selenium.
- Publication:
-
Physical Review
- Pub Date:
- October 1968
- DOI:
- 10.1103/PhysRev.174.849
- Bibcode:
- 1968PhRv..174..849B