Abstract
The longitudinal optical phonon-plasmon interaction theory of Varga is shown to be applicable to Gadoped CdS through the region of the first reflectivity minumum (2.5 to about 30 μ). The theoretical reflectivity vs wavelength for several concentrations of Ga-doped CdS are compared with experiment. The agreement between theory and experiment is particularly good for high dopant concentrations. A plot of the wavelength at minimum reflectivity vs impurity concentrations shows that the Varga theory does well in explaining the data. When phonon damping is introduced into the Varga dielectric function, the reflectivity over the whole region of resonance is more realistic. Finite plasmon lifetime is not considered since no data are available for CdS. © 1968 The American Institute of Physics.
Recommended Citation
R. J. Bell et al., "Longitudinal Optical Phonon-plasmon Coupling In CdS," Journal of Applied Physics, vol. 39, no. 1, pp. 48 - 51, American Institute of Physics, Dec 1968.
The definitive version is available at https://doi.org/10.1063/1.1655776
Department(s)
Physics
International Standard Serial Number (ISSN)
0021-8979
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 American Institute of Physics, All rights reserved.
Publication Date
01 Dec 1968
