Electromagnetic shock waves from transmission lines
Open Access
- 12 October 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (15), 1663-1666
- https://doi.org/10.1103/physrevlett.59.1663
Abstract
We have observed subpicosecond electrical pulses to propagate on 5-μm coplanar transmission lines at velocities faster than the phase velocity in the underlying dielectric. This situation produces an electromagnetic shock wave in a manner similar to Cherenkov radiation and electro-optic Cherenkov radiation. Using time-domain spectroscopy we have measured the strong frequency-dependent loss of energy in the propagating electrical pulse due to this radiation.Keywords
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