Open AccessFabrication of computer-generated holograms using femtosecond laser direct writing
Author(s) -
R. Berlich,
Daniel Richter,
Martin Richardson,
Stefan Nolte
Publication year - 2016
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.41.001752
Subject(s) - holography , optics , femtosecond , laser , borosilicate glass , fabrication , materials science , inscribed figure , waveguide , phase (matter) , optoelectronics , physics , medicine , alternative medicine , geometry , mathematics , pathology , quantum mechanics , composite material
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.