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Opt Lett. 2006 Jun 15;31(12):1890-2.

Fresnel axicon.

Author information

1
iUreka, 31 Castleton Street, Ottawa, Ontario K2G 5P2, Canada. ilya.golub@rogers.com

Abstract

A new optical element, a Fresnel axicon (fraxicon), is proposed. Similar to a Fresnel lens, this element consists of concentric prism-like grooves with an apex angle equal to that of a bulk axicon and whose action relies on refraction. The fraxicon is less chromatic and simpler to manufacture than holographic optical element-based diffractive axicons and, in comparison with regular refractive axicons, is more compact with less absorption loss in the material while allowing significant economy in mass production.

PMID:
16729105
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