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Diffraction analysis of lens axicons

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Abstract

Axicons, as shown in Fig. 1(a), are optical elements that produce long and narrow focal lines along the optical axis, rather than the conventional focal point created by a lens. The focal line can be used for e.g. alignment, extending the focal depth of existing methods, or particle trapping and transportation. Axicons are mainly produced as refractive glass cones, or as diffractive gratings consisting of concentric circles. They can also be constructed from ordinary lenses or lens systems, referred to as lens axicons. There are several lens axicon designs, using spherical or aspheric surfaces to produce the necessary amount of spherical aberration.
Original languageEnglish (Ireland)
Title of host publicationEOS Topical meeting on Diffractive Optics 2005
Publication statusPublished - 1 Jan 2005

Authors (Note for portal: view the doc link for the full list of authors)

  • Authors
  • A. Burvall, A. Goncharov, J.C. Dainty

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