Experimental time-domain study of THz signals from impulse excitation of a horizontal surface dipole
Abstract
Using optoelectronic techniques with sub-ps resolution, we have characterized the electric-field time-domain response from an impulsively excited, micron-sized dipole antenna on a dielectric surface. When detected by an adjacent dipole antenna 400 mm distant, two primary signals are observed, a far-field pulse reflected from the back surface of the substrate and a surface-wave pulse. The surface-wave pulse appears as two distinct surface-propagating pulses despite originating from the dipole simultaneously.
DOI
10.1063/1.123681Citation
McGowan, R. W., & Grischkowsky, D. (1999). Experimental time-domain study of THz signals from impulse excitation of a horizontal surface dipole. Applied Physics Letters, 74(12), 1764-1766. https://doi.org/10.1063/1.123681