title: Concentric ring metal grating for generating radially polarized light.
abstract: A subwavelength concentric ring metal grating for visible light (λ=632.8 nm) is designed and fabricated by electron-beam lithography to transform circularly polarized light into radially polarized light. Experimental results are compared to theoretical predictions and the advantages and disadvantages of the element with alternative methods are discussed.
authors.affiliation: Institute for Optics, Information and Photonics, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany. zahra.ghadyani@physik.uni‐erlangen.de
authors.forename: Z
authors.initials: Z
authors.lastname: Ghadyani
authors.forename: I
authors.initials: I
authors.lastname: Vartiainen
authors.forename: I
authors.initials: I
authors.lastname: Harder
authors.forename: W
authors.initials: W
authors.lastname: Iff
authors.forename: A
authors.initials: A
authors.lastname: Berger
authors.forename: N
authors.initials: N
authors.lastname: Lindlein
authors.forename: M
authors.initials: M
authors.lastname: Kuittinen