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

Radiation efficiency of partially coherent electromagnetic beams

Not Accessible

Your library or personal account may give you access

Abstract

We present a general definition of the radiation efficiency of stationary electromagnetic fields and prove that it is bounded between zero and unity for beams of any state of coherence and polarization. The radiation efficiency may be interpreted as a measure of how directed the radiated fields are, and therefore it can be used to assess the allowed spatial coherence and intensity variations across a beam. We consider a class of partially coherent electromagnetic fields that were recently introduced in the literature and evaluate the radiation efficiencies for two particular examples, namely, the azimuthally polarized symmetric beams and the dipolar beams that are nearly linearly polarized in the central region. The results show that the radiation efficiency is fairly insensitive to the state of polarization and that it differs appreciably from unity for only small values of source and correlation widths.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Partially coherent Gaussian Schell-model electromagnetic beams

S. R. Seshadri
J. Opt. Soc. Am. A 16(6) 1373-1380 (1999)

Average characteristics of partially coherent electromagnetic beams

S. R. Seshadri
J. Opt. Soc. Am. A 17(4) 780-789 (2000)

Coherent-mode representation of partially polarized pulsed electromagnetic beams

Timo Voipio, Tero Setälä, and Ari T. Friberg
J. Opt. Soc. Am. A 30(11) 2433-2443 (2013)

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

Figures (9)

You do not have subscription access to this journal. Figure files 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 (47)

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