Effect of optical phonons on femtosecond pulse propagation in coplanar striplines
- 5 February 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 56 (6) , 515-517
- https://doi.org/10.1063/1.102753
Abstract
A full-wave analysis of the dispersion in coplanar-type transmission lines is made including the effect of material dispersion arising from a frequency-dependent complex dielectric constant such as due to optical phonon resonances in the substrate. The results are used to examine the distortion of femtosecond electrical pulses propagating in coplanar striplines made on ultrathin as well as thick GaAs substrates. A new closed-form dispersion formula for coplanar lines is also reported, valid for complex dielectric constants and all values of frequency and line dimensions.Keywords
This publication has 7 references indexed in Scilit:
- Femtosecond excitonic optoelectronicsIEEE Journal of Quantum Electronics, 1989
- Field-induced optical nonlinearity due to virtual transitions in semiconductor quantum well structuresPhysical Review Letters, 1987
- Generation of ultrashort electrical pulses through screening by virtual populations in biased quantum wellsPhysical Review Letters, 1987
- Dispersion of Picosecond Pulses in Coplanar Transmission LinesIEEE Transactions on Microwave Theory and Techniques, 1986
- Dispersion Of Picosecond Pulses On Microstrip Transmission LinesPublished by SPIE-Intl Soc Optical Eng ,1983
- Impulse response of photoconductors in transmission linesIEEE Journal of Quantum Electronics, 1983
- Intrinsic density n i (T) in GaAs: Deduced from band gap and effective mass parameters and derived independently from Cr acceptor capture and emission coefficientsJournal of Applied Physics, 1982