| Literature DB >> 20237630 |
Uriel Levy1, Boris Desiatov, Ilya Goykhman, Tali Nachmias, Avi Ohayon, Sheffer E Meltzer.
Abstract
We describe the design, fabrication, and experimental demonstration of a circular Dammann grating element generating a point-spread function of two concentric rings with equal intensity. The element was fabricated using grayscale lithography, providing a smooth and accurate phase profile. As a result, we obtained high diffraction efficiency and good uniformity between the two rings.Year: 2010 PMID： 20237630 DOI： 10.1364/OL.35.000880
Source DB: PubMed Journal: Opt Lett ISSN： 0146-9592 Impact factor: 3.776