THE ELECTRONIC RAMAN SCATTERING AND TWO-PHOTON FLOURESCENCE IN LiYF4:Nd3+
LiYF4:Nd3+的电子喇曼散射与双光子荧光

The following spectra of LiYF4:Nd have been observed for the first time: (i) the electronic and electron-phonor Raman spectra of the stark sub-levels Y1-Y6 of energy levels 4I11/2 excited by 4880? Ar+ laser beam; (ii) two-photon fluorescence and electron-phonor spectra excited by 6943? ruby laser beam.