PHOTOPROCESSES ON THE SURFACE OF NANOPOROUS QUARTZ UNDER THE ACTION OF RESONANT LASER-RADIATION

The interaction of resonant laser radiation with iodine molecules sorb ed on the surface of nanoporous quartz is experimentally investigated. The photodesorption of high-energy iodine molecules with an energy of translational motion of 1.7 eV by 2.3-eV quanta is detected. Simultan eously, we observed thermal desorption of J(2) with appreciably lower kinetic energies and photodissociation of iodine on the surface of nan oporous quartz. We arrive at a conclusion that the observed photodesor ption with anomalously high rates proceeds through the formation of a stable state of an adsorbate-surface complex corresponding to an excit ed adsorbate molecule.