Browsing by Subject "lenses"

Now showing items 1-2 of 2

    • Planar THz quasioptics 

      Dai, Jianming; Coleman, S.; Grischkowsky, D. (AIP Publishing, 2004-08-09)
      Two-dimensional (2D) quasioptical elements are demonstrated as guiding structures in the THz frequency regime. A planar polyethylene lens is incorporated in a parallel metal plate structure and is shown to focus guided THz ...

    • Quasioptic dielectric tetrahertz cavity: Coupled through optical tunneling 

      Zhang, Weili; Zhang, Jiangquan; Grischkowsky, D. (AIP Publishing, 2001-04-23)
      We report the observation of the well defined oscillation of a picosecond tetrahertz (ps THz) pulse within a dielectric concentric cy1indrica1 cavity, which is coupled to an incoming focused beam of ps THz pulses by the ...