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

High-numerical-aperture focusing of radially polarized doughnut beams with a parabolic mirror and a flat diffractive lens

Not Accessible

Your library or personal account may give you access

Abstract

Recently, Dorn, et al. [Phys. Rev. Lett. 91, 233901 (2003)] demonstrated the significance of radially polarized doughnut beams in obtaining very small focal spots (with an area of 0.26λ2) with high-numerical-aperture (NA) aplanatic microscope objectives. We propose two simple alternative ways to focus such radially polarized beams: a parabolic mirror and a flat diffractive lens. Because of their large apodization factor for a high NA, a significant further reduction in spot area (up to a factor of 1.76 at a NA of 1) compared with the aplanatic system can be achieved.

© 2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Toward a spherical spot distribution with 4π focusing of radially polarized light

Nándor Bokor and Nir Davidson
Opt. Lett. 29(17) 1968-1970 (2004)

Anomaly in a high-numerical-aperture diffractive focusing lens

Ram Oron, Jacob L. Guedalia, Nir Davidson, Asher A. Friesem, and Erez Hasman
Opt. Lett. 25(7) 439-441 (2000)

Annular pupils, radial polarization, and superresolution

Colin J. R. Sheppard and Amarjyoti Choudhury
Appl. Opt. 43(22) 4322-4327 (2004)

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 (4)

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 (1)

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