title: Fabrication of computer-generated holograms using femtosecond laser direct writing.
abstract: We demonstrate a single-step fabrication method for computer-generated holograms based on femtosecond laser direct writing. Therefore, a tightly arranged longitudinal waveguide array is directly inscribed into a transparent material. By tailoring the individual waveguide length, the phase profile of an incident laser beam can be arbitrarily adapted. The approach is verified in common borosilicate glass by inscribing a designed phase hologram, which forms the desired intensity pattern in its far field. The resulting performance is analyzed, and the potential as well as limitations of the method are discussed.
authors.forename: René
authors.initials: R
authors.lastname: Berlich
authors.forename: Daniel
authors.initials: D
authors.lastname: Richter
authors.forename: Martin
authors.initials: M
authors.lastname: Richardson
authors.forename: Stefan
authors.initials: S
authors.lastname: Nolte