Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Power of a simple electric multipole of finite size

Not Accessible

Your library or personal account may give you access

Abstract

A simple electric multipole of finite size in the form of a spherical current sheet with a surface current density in the θ direction varying as sin2θ is considered. The electromagnetic fields outside the spherical surface are of the same form as that of the corresponding point electric multipole situated at the origin and oriented in the z direction. The power is separated into the radiative and the reactive parts and compared with the separation made on the basis of propagating and evanescent waves. The evanescent waves contribute only to the reactive power, and the propagating waves contribute to both the radiative and the reactive powers. The power flux density is also separated into the real and the reactive parts, and the characteristics of the two parts of the power flux density are discussed.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Constituents of power of an electric dipole of finite size

S. R. Seshadri
J. Opt. Soc. Am. A 25(3) 805-810 (2008)

Reactive power in the full Gaussian light wave

S. R. Seshadri
J. Opt. Soc. Am. A 26(11) 2427-2433 (2009)

Reflection and refraction of multipole radiation by an interface

Henk F. Arnoldus
J. Opt. Soc. Am. A 22(1) 190-198 (2005)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (62)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved