According to this news item, THz radiation also induces ballistic current flow in some semiconductors.
I am curious if this can occur in semiconductors containing, or in contact with, hydrides. The author has a number of papers in arxiv.org. -- Lou Pagnucco Mark Iverson wrote: > > Terahertz radiation can induce insulator-to-metal change of state in some > materials > > http://phys.org/news/2012-07-terahertz-insulator-to-metal-state-materials.ht > ml > > > > "the researchers used an antenna-like structure called a split ring > resonator to concentrate the electric field of a THz pulse in a small > area, > increasing the electric field from hundreds of kilovolts per centimeter to > about 4 megavolts per centimeter." > > > > Is there anything about H-loaded metals with shallow fractures, or Ni > tubercles, which might act like a split-ring resonator? > > > > ".because THz frequencies match the resonant frequencies at which > neighboring atoms and molecules in crystal lattices vibrate against each > other, *THz pulses can drive the lattice vibrations directly*-possibly to > large amplitudes. THz light can drive electrons and whole atoms and > molecules far from their equilibrium locations in a crystal lattice, which > can lead to phase transitions in electronic state and/or crystal > structure." > > > > -Mark Iverson > > > >
