Extraction of phonon density of states from optical spectra
- 15 September 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (6) , 4300-4303
- https://doi.org/10.1103/physrevb.32.4300
Abstract
A new method for inversion of optical luminescence spectra to obtain electron-phonon spectral densities is described. The method has been devised to invert error- and noise-contaminated experimental spectra. Although direct inversion is an ill-posed problem, our method succeeds by exponential attenuation of the spectral region distant from the zero-phonon line, especially the spectral tails. The method is illustrated by application to model data, and it is successfully applied to pulsed-laser data for ZnTe:O taken at 10 K. The resultant phonon density of states reveals dominant coupling to TA- and LO-phonon modes.Keywords
This publication has 12 references indexed in Scilit:
- Model for phonon-assisted indirect recombination at impurity sites in semiconductors: A test of impurity wave-function theoriesPhysical Review B, 1985
- Optical transitions via the deep O donor in GaP. I. Phonon interaction in low-temperature spectraPhysical Review B, 1978
- Nitrogen isoelectronic trap in : II. Model calculation of the electronic states and at low temperaturePhysical Review B, 1977
- Phonon interaction in optical transitions via the deep O donor in GaPJournal of Luminescence, 1976
- Analysis of the vibronic spectrum of chromium doped strontium titanatePhysical Review B, 1975
- Phonon Structure of Impurity-Related Optical Spectra in InsulatorsPhysical Review B, 1971
- Phonon sideband analysis of the -absorption in MnFSolid State Communications, 1971
- Vibronic Spectra and the Shell ModelsPhysical Review B, 1969
- Temperature Dependence of the Width and Position of theFluorescence Lines ofandin MgOPhysical Review B, 1964
- The Franck-Condon Principle and Its Application to CrystalsThe Journal of Chemical Physics, 1952