Abstract

Optical point sources are considered theoretical idealizations. However, it is pertinent to characterize feasible physical point sources for the current micro- and nano-optics. It is shown that certain three-dimensional (3D) distributions of real and virtual point emitters provide a nonparaxial energy cone with the same geometry of the cone provided by the single ideal real point emitter placed at the midpoint of the 3D distribution. These cones fit along arbitrary distances from the 3D distribution up to very short ones (a fraction of the wavelength). A generalized criterion is proposed to characterize the physical point source as a feasible 3D object. Some implications are discussed.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spectrum of classes of point emitters: new tool for nonparaxial optical field modeling

Román Castañeda and Hernán Muñoz
J. Opt. Soc. Am. A 33(8) 1421-1429 (2016)

Simulation of point-source scintillation through three-dimensional random media

J. M. Martin and Stanley M. Flatté
J. Opt. Soc. Am. A 7(5) 838-847 (1990)

Discreteness of the set of radiant point sources: a physical feature of the second-order wave-fronts

Román Castañeda, David Vargas, and Esteban Franco
Opt. Express 21(11) 12964-12975 (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 (7)

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 (10)

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