By Topic

2 THz bandwidth electrical pulses on Au and YBa2Cu3Ox transmission lines

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
5 Author(s)
Osbahr, Christian J. ; NKT Research Center, Priorparken 878, DK-2605 Brøndby, Denmark ; Larsen, Britt H. ; Holst, Thorsten ; Shen, Yueqiang
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.123704 

An amorphous photoconductive GaAs switch is laser ablated directly onto a superconducting YBa2Cu3Ox coplanar transmission line structure. Illuminating the switch with femtosecond laser pulses generates electrical pulses containing frequency components up to 2 THz. The pulses are detected by photoconductive sampling and have a full width at half maximum of 0.4 ps without deconvolution. Measurements have been performed on both YBa2Cu3Ox and Au/YBa2Cu3Ox transmission lines and we find attenuation and dispersion coefficients to be larger on YBa2Cu3Ox at 77 K than on Au. Furthermore, the integrated photoconductive switch is used to demonstrate that subpicosecond pulses can propagate through small gaps in the transmission lines with minimum attenuation and dispersion. © 1999 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:74 ,  Issue: 13 )