The imaging properties of three types of refractive axicons are examined by using them in an imaging system. A linear axicon, a logarithmic axicon, and a Fresnel axicon are characterized by determining their point spread functions (PSFs) experimentally and by numerical simulation. The PSFs, which vary along the depth of field for the cases considered in the present investigation, are used in digital filters to denoise the images. A comparison of the imaging performance of these three optical elements is presented.
© 2013 Optical Society of America
Optical Design and Fabrication
Original Manuscript: July 1, 2013
Revised Manuscript: August 23, 2013
Manuscript Accepted: August 26, 2013
Published: September 26, 2013
Andrew Saikaley, Brahim Chebbi, and Ilya Golub, "Imaging properties of three refractive axicons," Appl. Opt. 52, 6910-6918 (2013)