Title

Focal squeeze in axicons

Authors

Authors

C. J. Zapata-Rodriguez;F. E. Hernandez

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Opt. Commun.

Keywords

diffraction; wave propagation; TRAVELING NONDIFFRACTING BEAMS; EFFECTIVE FRESNEL-NUMBER; BESSEL BEAMS; 2ND-HARMONIC GENERATION; GAUSSIAN BEAMS; SHIFT; INTERFERENCE; WAVES; EFFICIENCY; DEBYE; Optics

Abstract

The on-axis irradiance distribution of a truncated conical wavefront is evaluated in terms of the Fresnel number of the focusing geometry. In agreement with geometrical optics, a focal line of increasing intensity is generated for extremely high Fresnel numbers. Otherwise clear deviations may be observed for the position of the maximum irradiance along the optical axis. A remarkable focal squeeze appears and, for decreasing Fresnel numbers, this effect manifests stronger. An analytical formula is provided for the fast evaluation of the focal squeeze. (c) 2005 Elsevier B.V. All rights reserved.

Journal Title

Optics Communications

Volume

254

Issue/Number

1-3

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

3

Last Page

9

WOS Identifier

WOS:000232087500001

ISSN

0030-4018

Share

COinS