Vibronic Structure in the Luminescent Spectra of Ions in Solids
A unified treatment of the vibronic structure taking into account both diagonal and off-diagonal parts of Hamiltonian for the electron-phonon coupling is given. It is shown that both the ratio of integrated intensities of one-phonon component to that of zero-phonon component and the profile of one-phonon side band for an almost forbidden transition can be different from those for an allowed transition. Also the different temperature dependence of the integrated intensities is pointed out. These results are discussed in the light of recent experimental observations.
KeywordsIntegrate Intensity Excited Electronic State Side Band Allowed Transition Vibronic Structure
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- 1.For instance, Y. Toyozawa: Dynamical Processes in Optical Spectra of Solids (Syokabo, Tokyo and W. A. Benjamin, New York, (1967), p. 90.Google Scholar