Abstract

Diffraction of a Gaussian beam passing through a circular aperture subsequently focused by a lens is investigated. An expression is derived for the amplitude distribution beyond the lens. With the aid of the axial intensity and encircled energy, the effect of the aperture-lens separation on the focal shift is obtained, and the quantitative influence of the truncation parameter and Fresnel number on the focal shift is also presented.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Focal shift of focused truncated Lorentz-Gauss beam

Guoquan Zhou
J. Opt. Soc. Am. A 25(10) 2594-2599 (2008)

Focal shift for a Gaussian beam: an experimental study

Gregg D. Sucha and William H. Carter
Appl. Opt. 23(23) 4345-4347 (1984)

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 (8)

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 (61)

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