Abstract

The propagation of an electromagnetic wave through an open beam waveguide is theoretically investigated in the case where the guiding elements are not inserted in an absorbing screen. Numerical results are derived for the dielectric-frame beam waveguide. The low loss per cell of such a waveguide and the existence of a quasi-repetitive field configuration are explained by the presence of an internal caustic surface, supported by the frames, bounding the axial portion of the beam. The finiteness of the transverse width of the frames and the absence of any outer screen suggest the formation of an external caustic surface, which is closer to the internal one the narrower the frames are. Knowledge of the features of the caustic due to each single frame is of help in the design of the low-loss beam waveguides with prescribed characteristics.

© 1975 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Electromagnetic theory of an open resonator

S. R. Seshadri
J. Opt. Soc. Am. A 18(7) 1748-1757 (2001)

Unstable open resonators: two-dimensional and three-dimensional losses by a waveguide analysis

C. Santana and L. B. Felsen
Appl. Opt. 15(6) 1470-1478 (1976)

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 (12)

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 (16)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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