Title :
Tera-Hertz study of normal and superconducting transmission lines
Author :
Chi, C.C. ; Grischkowsky, D.
Author_Institution :
IBM T.J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
Electrical pulses as short as 0.6 ps in duration have been generated and sampled on coplanar transmission lines made of normal metals and superconductors to study the dispersion and loss spectrum in the frequency range up to 1 THz. The superconducting lines are superior when the loss of their normal metal counterparts is dominated by the resistance. However, the strong dispersion induced by the superconducting gap limits their usefulness to below the gap frequency, which is about 0.7 THz for superconducting Nb, and maybe as high as 16 THz for high-Tc superconducting oxides
Keywords :
superconducting cables; telecommunication transmission lines; 1 THz; dispersion; electrical pulses; loss spectrum; normal transmission lines; superconducting transmission lines; Conductivity; Coplanar transmission lines; Frequency; High temperature superconductors; Impedance; Inductance; Microstrip; Propagation losses; Superconducting transmission lines; Superconductivity;
Conference_Titel :
Computer Design: VLSI in Computers and Processors, 1988. ICCD '88., Proceedings of the 1988 IEEE International Conference on
Conference_Location :
Rye Brook, NY
Print_ISBN :
0-8186-0872-2
DOI :
10.1109/ICCD.1988.25684
