In the present work, through the path integral of Gaussian type correlation function, a new formalism based on Fermi-Golden Rule for calculating the rate constant of nonradiative decay process with Duschinsky rotation...In the present work, through the path integral of Gaussian type correlation function, a new formalism based on Fermi-Golden Rule for calculating the rate constant of nonradiative decay process with Duschinsky rotation effect in polyatomic molecules is developed. The advantage of the present path-integral formalism is promoting-mode free. In order to get the rate constant, a "transition rate matrix" needs to be calculated. The rate constant calculated previously is only an approximation of diagonal elements of our "transition rate matrix " . The total rate should be the summation over all the matrix elements.展开更多
The lattice vibration mode of the laser crystals NAB and NYAB are measured by Raman spectra method and the possible effects of the BO<sub>3</sub> and NdO<sub>6</sub> vibration modes on the non-...The lattice vibration mode of the laser crystals NAB and NYAB are measured by Raman spectra method and the possible effects of the BO<sub>3</sub> and NdO<sub>6</sub> vibration modes on the non-radiative transition of the active ions are discussed.展开更多
基金Supported by the National Natural Science Foundation of China (Grant Nos. 10425420, 20433070 and 90503013)
文摘In the present work, through the path integral of Gaussian type correlation function, a new formalism based on Fermi-Golden Rule for calculating the rate constant of nonradiative decay process with Duschinsky rotation effect in polyatomic molecules is developed. The advantage of the present path-integral formalism is promoting-mode free. In order to get the rate constant, a "transition rate matrix" needs to be calculated. The rate constant calculated previously is only an approximation of diagonal elements of our "transition rate matrix " . The total rate should be the summation over all the matrix elements.
文摘The lattice vibration mode of the laser crystals NAB and NYAB are measured by Raman spectra method and the possible effects of the BO<sub>3</sub> and NdO<sub>6</sub> vibration modes on the non-radiative transition of the active ions are discussed.
