Analysis of the THz response of a simple periodic graphite-based structure

M.P.M. Colleoni, B. Vidal
2014 Optics Express  
Optical Society of America Colleoni, MPM.; Vidal Rodriguez, B. (2014). Analysis of the THz response of a simple periodic graphite-based structure. Optics Express. 22(24):30156-30160. Abstract: We report the observation of the dichroism effect in simple wire grid structures made of graphite on a paper substrate, i.e. we investigate the feasibility of drawing polarizers for the THz band using conventional graphite-based lead pencils. The displacement of the maximum frequency of the selective
more » ... the selective absorption phenomenon by varying the wire pitch hints at a polarizing behavior. Measurements of the maximum and minimum of transmission efficiency, extinction ratio and degree of polarization are carried out with a transmission fiber THz-TDS setup. Experimental results show a 9 dB extinction ratio for an inexpensive (<1$) home-made component.
doi:10.1364/oe.22.030156 pmid:25606945 fatcat:iw5j45him5d6ncdw4oluxat2ku