Shock wave coupling between terahertz transmission lines on GaAs

22 September 2003

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 83 (12) , 2483-2485
https://doi.org/10.1063/1.1610245

Abstract

We experimentally study the behavior of an electromagnetic shock wave radiated by a picosecond electrical pulse propagating on a coplanar stripline at the interface between air and a GaAs substrate. The shock wave is directly measured by time-resolved electroabsorption sampling. We show that after a few millimeters of propagation this shock wave is in fact constituted by substrate modes causing large leakage resonances in the spectrum of the propagating pulse. At last, we show that the presence of adjacent transmission lines on the substrate has an influence on these leakage resonances.

Keywords

This publication has 9 references indexed in Scilit:

Detection of picosecond electrical pulses using the intrinsic Franz–Keldysh effect
Applied Physics Letters, 2001
Packaging of printed-circuit lines: a dangerous cause for narrow pulse distortion
IEEE Transactions on Microwave Theory and Techniques, 1994
New interesting leakage behavior on coplanar waveguides of finite and infinite widths
IEEE Transactions on Microwave Theory and Techniques, 1991
Terahertz attenuation and dispersion characteristics of coplanar transmission lines
IEEE Transactions on Microwave Theory and Techniques, 1991
Dispersion characteristics of optically excited coplanar striplines: comprehensive full-wave analysis
IEEE Transactions on Microwave Theory and Techniques, 1990
Observation of electromagnetic shock waves from propagating surface-dipole distributions
Physical Review Letters, 1989
Electromagnetic shock waves from transmission lines
Physical Review Letters, 1987
Cherenkov Radiation from Femtosecond Optical Pulses in Electro-Optic Media
Physical Review Letters, 1984
Subpicosecond electro-optic shock waves
Applied Physics Letters, 1983