Demonstration of image-zooming capability for diffractive axicons

Guillaume Druart (1) , Jean Albert Taboury (2) , Nicolas Guérineau (1) , Riad Haïdar (1) , Hervé Sauer (2) , Alain Kattnig (1) , Jérôme Primot (1)

1 ONERA - The French Aerospace Lab [Châtillon]
2 Laboratoire Charles Fabry de l'Institut d'Optique / Scop

Diffractive axicons are optical components producing achromatic nondiffracting beams. They thus produce a focal line rather than a focal point for classical lenses. This gives the interesting property of a long focal depth. We show that this property can be used to design a simple imaging system with a linear variable zoom by using and translating a diffractive axicon as the only optical component. (c) 2008 Optical Society of America.

Keywords: Diffraction and gratings; Binary optics; Image enhancement; Imaging systems; Frequency filtering

Domains: Optics [physics.optics]

Guillaume Druart, Jean Albert Taboury, Nicolas Guérineau, Riad Haïdar, Hervé Sauer, et al.. Demonstration of image-zooming capability for diffractive axicons. Optics Letters, 2008, 33 (4), pp.366--368. ⟨10.1364/OL.33.000366⟩. ⟨hal-00628969⟩