Laser induced fluorescence of Se2 and Te2 in rare gas matrices

The laser induced fluorescence excitation and resolved emission spectra of Se₂ and Te₂ suggest that these species are only insignificantly perturbed by the solid medium. The spectroscopy of both molecules in the matrix is governed by efficient nonradiative transitions among numerous low lying electronic states and fast vibrational relaxation. Several new electronic states of these species are observed and characterized.