Advanced

A time-domain approach to the extinction paradox for scattering of electromagnetic waves

Gustafsson, Mats LU ; Sohl, Christian LU ; Karlsson, Anders LU and Kristensson, Gerhard LU (2008) XXIXth URSI General Assembly 2008 p.1-4
Abstract
The extinction paradox states that a perfectly electric conducting target which is large compared to the wavelength

removes from the incident radiation exactly twice the amount of power it can intercept by its geometrical cross section

area. In this paper, the extinction paradox is generalized to include temporally dispersive material parameters with finite

values of the permittivity and the permeability. From a time-domain approach it is shown that the high-frequency

limit of the extinction cross section depends on the material parameters of the target and that a limiting value not necessarily

exists. These findings are exemplified by several numerical illustrations with different values of the... (More)
The extinction paradox states that a perfectly electric conducting target which is large compared to the wavelength

removes from the incident radiation exactly twice the amount of power it can intercept by its geometrical cross section

area. In this paper, the extinction paradox is generalized to include temporally dispersive material parameters with finite

values of the permittivity and the permeability. From a time-domain approach it is shown that the high-frequency

limit of the extinction cross section depends on the material parameters of the target and that a limiting value not necessarily

exists. These findings are exemplified by several numerical illustrations with different values of the extinction

cross section in the high-frequency limit. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
1 - 4
conference name
XXIXth URSI General Assembly 2008
language
English
LU publication?
yes
id
934bb2f0-e66c-41ae-9d7c-9f86849ffec5 (old id 1058479)
alternative location
http://www.ursi.org/proceedings/procGA08/papers/B06p4.pdf
date added to LUP
2008-04-16 10:49:01
date last changed
2016-07-15 11:21:40
@misc{934bb2f0-e66c-41ae-9d7c-9f86849ffec5,
  abstract     = {The extinction paradox states that a perfectly electric conducting target which is large compared to the wavelength<br/><br>
removes from the incident radiation exactly twice the amount of power it can intercept by its geometrical cross section<br/><br>
area. In this paper, the extinction paradox is generalized to include temporally dispersive material parameters with finite<br/><br>
values of the permittivity and the permeability. From a time-domain approach it is shown that the high-frequency<br/><br>
limit of the extinction cross section depends on the material parameters of the target and that a limiting value not necessarily<br/><br>
exists. These findings are exemplified by several numerical illustrations with different values of the extinction<br/><br>
cross section in the high-frequency limit.},
  author       = {Gustafsson, Mats and Sohl, Christian and Karlsson, Anders and Kristensson, Gerhard},
  language     = {eng},
  pages        = {1--4},
  title        = {A time-domain approach to the extinction paradox for scattering of electromagnetic waves},
  year         = {2008},
}