Browsing by Author "Keiding, Soren"

Now showing items 1-3 of 3

    • Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors 

      Grischkowsky, D.; Keiding, Soren; van Exter, Martin; Fattinger, Ch. (Optical Society of America, 1990-10)
      Using the method of time-domain spectroscopy, we measure the far-infrared absorption and dispersion from 0.2 to 2 THz of the crystalline dielectrics sapphire and quartz, fused silica, and the semiconductors silicon, gallium, ...

    • THz commensurate echoes: Periodic rephasing of molecular transitions in free-induction decay 

      Harde, H.; Keiding, Soren; Grischkowsky, D. (American Physical Society, 1991-04-08)
      We report the first study of coherent transients excited by ultrafast pulses of THz radiation. Using a newly developed optoelectronic source of well-collimated beams of subpicosecond pulses of THz radiation to excite N2O ...

    • THz time-domain spectroscopy of high Tc substrates 

      Grischkowsky, D.; Keiding, Soren (AIP Publishing, 1990-09-03)
      Using the method of time-domain spectroscopy, we have measured the absorption and dispersion from 0.2 to 2 THz of the high Tc substrates, magnesium oxide, yttria-stabilized zirconia (YSZ), and lanthanum aluminate. Our ...