Abstract

We analytically study the time-averaged electromagnetic energy stored inside scatterers containing inclusions of arbitrary shapes. Assuming the low density of inclusions, we derive the expression for the energy-transport velocity through disordered media without relying on the radiative transfer equation. Moreover, this expression is independent of the shape of scatterers. In addition, we obtain a relation between the dwell and absorption times associated with inclusions by considering the relationship between the internal energy and absorption cross-section. An approximation for the electromagnetic energy stored inside a disordered medium in terms of the transport mean free path and the packing fraction is also derived. This expression suggests that the enhanced electromagnetic energy within the host medium is achieved for inclusions exhibiting negative scattering asymmetry parameters. As a result, disordered media with enhanced backscattering is expected to exhibit large quality factors.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Electromagnetic energy within coated cylinders at oblique incidence and applications to graphene coatings

Tiago José Arruda, Alexandre Souto Martinez, and Felipe A. Pinheiro
J. Opt. Soc. Am. A 31(8) 1811-1819 (2014)

Electromagnetic energy within magnetic spheres

Tiago José Arruda and Alexandre Souto Martinez
J. Opt. Soc. Am. A 27(5) 992-1001 (2010)

Electromagnetic energy within single-resonance chiral metamaterial spheres

Tiago J. Arruda, Felipe A. Pinheiro, and Alexandre S. Martinez
J. Opt. Soc. Am. A 30(6) 1205-1212 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (3)

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

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

Equations (23)

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

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