Polarization Enhancement of terahertz radiation generated by intrinsic   Josephson junctions in a truncated edge square   Bi_{2}Sr_{2}CaCu_{2}O_{8+{\delta}} mesa
  In this study, we investigated the terahertz radiation from a truncated edge square mesa structure made from a superconducting Bi_{2}Sr_{2}CaCu_{2}O_{8+{\delta}} . Using a commercial software, the polarization characteristics were determined, and introduced, while accounting for the skin effect. The axial ratio was enhanced in the simulation by performing a parametric study on the design. 
A. Elarabi, Y. Yoshioka, M. Tsujimoto, Y. Nakagawa, I. Kakeya
cond-mat.supr-con