TY - GEN
T1 - Pulsed beam propagation in dispersive media
AU - Melamed, T.
AU - Felsen, L. B.
N1 - Publisher Copyright:
© 2000 IEEE.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - This paper is concerned with the behavior of transient wavefields due to a pulsed-beam (PB) wavepacket launched obliquely from a hypothetical aperture plane in a medium with generic dispersion k(w), where k and w are wavenumber and frequency, respectively. The problem is solved through spectral decomposition into plane waves in the frequency (w) and spatial wavenumber (ξ) domains, followed by asymptotics on the spectral inversion integrals, with w-synthesis performed before ξ-synthesis. Special attention in the transient spectral domain is given to paraxial PB approximations and to criteria for their range of validity. The resulting PBs can be used to synthesize transient wavefields excited by arbitrary space-time source distributions of finite support on a specified aperture plane in the medium.
AB - This paper is concerned with the behavior of transient wavefields due to a pulsed-beam (PB) wavepacket launched obliquely from a hypothetical aperture plane in a medium with generic dispersion k(w), where k and w are wavenumber and frequency, respectively. The problem is solved through spectral decomposition into plane waves in the frequency (w) and spatial wavenumber (ξ) domains, followed by asymptotics on the spectral inversion integrals, with w-synthesis performed before ξ-synthesis. Special attention in the transient spectral domain is given to paraxial PB approximations and to criteria for their range of validity. The resulting PBs can be used to synthesize transient wavefields excited by arbitrary space-time source distributions of finite support on a specified aperture plane in the medium.
UR - http://www.scopus.com/inward/record.url?scp=84954500033&partnerID=8YFLogxK
U2 - 10.1109/ISAPE.2000.894791
DO - 10.1109/ISAPE.2000.894791
M3 - Conference contribution
AN - SCOPUS:84954500033
T3 - ISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings
SP - 329
EP - 332
BT - ISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings
A2 - Jin, Yaqiu
PB - Institute of Electrical and Electronics Engineers
T2 - 5th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2000
Y2 - 15 August 2000 through 18 August 2000
ER -