Browsing OSU - Faculty and Staff Publications by Author "Laman, N."

Now showing items 1-5 of 5

    • High-Q terahertz Bragg resonances within a metal parallel plate waveguide 

      Harsha, S. Sree; Laman, N.; Grischkowsky, D. (AIP Publishing, 2009-03-06)
      One-dimensional (1D) Bragg waveguides are demonstrated at terahertz (THz) frequencies. Lithographically made 1D symmetric and asymmetric dielectric gratings on metallized high conductivity Si chips are incorporated within ...

    • Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide 

      Melinger, Joseph S.; Laman, N.; Harsha, S. Sree; Grischkowsky, D. (AIP Publishing, 2006-12-19)
      Waveguide terahertz time-domain spectroscopy is used to demonstrate the narrowing of vibrational lines for a thin polycrystalline film of 1,2-dicyanobenzene in a parallel plate metal waveguide. When compared to corresponding ...

    • Reduced conductivity in the terahertz skin-depth layer of metals 

      Laman, N.; Grischkowsky, D. (AIP Publishing, 2007-03-23)
      The terahertz conductivities of plates of Cu and Al were measured to remain the same at 295 and 77 K using waveguide terahertz time domain spectroscopy (THz-TDS). This result was true for a variety of commercial alloys and ...

    • Terahertz conductivity of thin metal films 

      Laman, N.; Grischkowsky, D. (AIP Publishing, 2008-08-05)
      The conductivities of thin Al, Au, and Ag films were measured via their transmission at terahertz frequencies. The conductivities of all the films, particularly the thinner films and Al films, were much smaller than their ...

    • Underlying terahertz vibrational spectrum of explosives solids 

      Melinger, Joseph S.; Laman, N.; Grischkowsky, D. (AIP Publishing, 2008-07-08)
      Using waveguide terahertz time-domain spectroscopy, we demonstrate the measurement of the underlying terahertz vibrational spectrum of the explosive solids hexahydro-1,3,5-trinitro-1,3,5-triazine, and 2,4,6-trinitrotoluene. ...