Abstract
One of the most promising applications of the new high Tc superconducting materials is for high bandwidth, coplanar transmission lines capable of propagating subpsec electrical pulses. This application can only be realized, if the dielectric substrates do not absorb at these frequencies. At present the required THz absorption data is not available. However, the new THz beam system illustrated in Fig. la is capable of time-domain spectroscopy (TDS) of these substrates in the relevant frequency range from 0.1-2.0 THz (1).
© 1990 Optical Society of America
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