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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 7617–7624

Highly nonparaxial (1+1)-D subwavelength optical fields

C. Rizza, A. Ciattoni, and E. Palange  »View Author Affiliations

Optics Express, Vol. 18, Issue 8, pp. 7617-7624 (2010)

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A general approach for describing (1 + 1)-D subwavelength optical field whose waist is much smaller than the wavelength is presented. Exploiting the vectorial Rayleigh-Sommerfeld diffraction theory, a suitable expansion in the ratio between the beam waist and the wavelength allows us to prove the a (1+1)D highly nonparaxial field is generally the product of a cylindrical wave carrier and an envelope which is angularly slowly varying. We apply our general approach to the case of highly nonparaxial Hermite-Gaussian beams whose description is fully analytical.

© 2010 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Physical Optics

Original Manuscript: October 14, 2009
Revised Manuscript: December 10, 2009
Manuscript Accepted: January 10, 2010
Published: March 29, 2010

C. Rizza, A. Ciattoni, and E. Palange, "Highly nonparaxial (1+1)-D subwavelength optical fields," Opt. Express 18, 7617-7624 (2010)

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