OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 29, Iss. 7 — Jul. 1, 2012
  • pp: 1269–1276

Axial separation of orthogonally polarized focal field components due to a radially polarized beam

Bosanta R. Boruah  »View Author Affiliations

JOSA A, Vol. 29, Issue 7, pp. 1269-1276 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (952 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



In this paper, we investigate the field distribution in the focal volume of an aberrated radially polarized beam. Using two different forms of the vectorial diffraction theory, we show that the presence of defocus in the beam displaces both the axially and the radially polarized fields parallel to the optical axis of the focusing lens, while the presence of spherical aberration primarily shifts the longitudinally polarized field only. This facilitates axial separation of the two orthogonally polarized field components, resulting in a significant boost to the ratio of the peak longitudinally polarized field to the peak laterally polarized field in the focal plane. We further show that with an appropriate combination of oppositely signed defocus and spherical aberration, the energy density in the focal volume due to the longitudinally polarized field can be caused to peak at the focal plane. The results obtained are expected to be beneficial to the applications requiring a stronger longitudinally polarized focal field relative to the laterally polarized focal field component.

© 2012 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(220.1010) Optical design and fabrication : Aberrations (global)
(260.1960) Physical optics : Diffraction theory
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

Original Manuscript: January 20, 2012
Revised Manuscript: March 4, 2012
Manuscript Accepted: March 21, 2012
Published: June 7, 2012

Bosanta R. Boruah, "Axial separation of orthogonally polarized focal field components due to a radially polarized beam," J. Opt. Soc. Am. A 29, 1269-1276 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. V. Ignatowsky, “Diffraction by a lens having arbitrary opening,” Trans. Opt. Inst. Petrograd. 1, 1–36 (1919).
  2. B. Richards and E. Wolf, “Electromagnetic diffraction in optical systems. II. Structure of the image field in an aplanatic system,” Proc. R. Soc. Lond. A 253, 358 (1959). [CrossRef]
  3. K. Youngworth and T. Brown, “Focusing of high numerical aperture cylindrical-vector beams,” Opt. Express 7, 77–87 (2000). [CrossRef]
  4. R. Dorn, S. Quabis, and G. Leuchs, “Sharper focus for a radially polarized light beam,” Phys. Rev. Lett. 91, 233901 (2003). [CrossRef]
  5. Y. Kozawa and S. Sato, “Sharper focal spot formed by higher-order radially polarized laser beams,” J. Opt. Soc. Am. A 24, 1793–1798 (2007). [CrossRef]
  6. Q. Tan, K. Cheng, Z. Zhou, and G. Jin, “Diffractive superresolution elements for radially polarized light,” J. Opt. Soc. Am. A 27, 1355–1360 (2010). [CrossRef]
  7. S. Yan, B. Yao, W. Zhao, and M. Lei, “Generation of multiple spherical spots with a radially polarized beam in a 4π focusing system,” J. Opt. Soc. Am. A 27, 2033–2037 (2010). [CrossRef]
  8. S. Yan, and B. Yao, “Radiation forces of a highly focused radially polarized beam on spherical particles,” Phys. Rev. A 76, 053836 (2007). [CrossRef]
  9. Y. Zhang, B. Ding, and T. Suyama, “Trapping two types of particles using a double-ring-shaped radially polarized beam,” Phys. Rev. A 81, 023831 (2010). [CrossRef]
  10. Y. Zhang, T. Suyama, and B. Ding, “Longer axial trap distance and larger radial trap stiffness using a double-ring radially polarized beam,” Opt. Lett. 35, 1281–1283 (2010). [CrossRef]
  11. L. Novotny, M. Beversluis, K. Youngworth, and T. Brown, “Longitudinal field modes probed by single molecules,” Phys. Rev. Lett. 86, 5251–5254 (2001). [CrossRef]
  12. H. Ishitobi, I. Nakamura, N. Hayazawa, Z. Sekkat, and S. Kawata, “Orientational imaging of single molecules by using azimuthal and radial polarizations,” J. Phys. Chem. B 114, 2565–2571 (2010). [CrossRef]
  13. Y. I. Salamin, Z. Harman, and C. H. Keitel, “Direct high-power laser acceleration of ions for medical applications,” Phys. Rev. Lett. 100, 155004 (2008). [CrossRef]
  14. M. Born and E. Wolf, Principles of Optics, 7th ed. (Cambridge University, 1999).
  15. B. R. Boruah and M. A. A. Neil, “Focal field computation of an arbitrarily polarized beam using fast Fourier transforms,” Opt. Commun. 282, 4660–4667 (2009). [CrossRef]
  16. M. A. A. Neil, F. Massoumian, R. Juškaitis, and T. Wilson, “Method for the generation of arbitrary complex vector wave fronts,” Opt. Lett. 27, 1929–1931 (2002). [CrossRef]
  17. B. R. Boruah and M. A. A. Neil, “Laser scanning confocal microscope with programmable amplitude, phase, and polarization of the illumination beam,” Rev. Sci. Instrum. 80, 013705 (2009). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited