Journal
APPLIED PHYSICS LETTERS
Volume 87, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2041819
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Left-handed transmission lines have been characterized by electro-optic sampling. The transmission lines used a coplanar strip technology periodically loaded by series capacitances and shunt inductances printed by electron-beam lithography onto a low-kappa substrate. The experiments by optoelectronic sampling were conducted using low-temperature-grown GaAs and AlGaAs patches for probing the time-domain transmission properties. The devices exhibit a high-frequency response above 100 and up to 400 GHz which shows direct evidence of a backward propagation by tracking the time dependence of transmitted signals and phase analysis. (c) 2005 American Institute of Physics.
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