Transition absorption as a mechanism of surface photoelectron emission   from metals
  Transition absorption of electromagnetic field energy by an electron passing through a boundary between two media with different dielectric permittivities is considered both classically and quantum mechanically. It is shown that transition absorption can make a substantial contribution to the process of electron photoemission from metals due to the surface photoelectric effect. 
Alexander V. Uskov, Igor V. Smetanin, Igor E. Protsenko, Renat Sh.   Ikhsanov, Sergei V. Zhukovsky, and Viktoriia E. Babicheva
cond-mat.mes-hall physics.optics