Freeform Hologram
The image shows a freeform hologram directly 3D printed onto the tip of a single-mode optical fiber (Optica 7, 1279 (2020)). The freeform hologram displays the logo ‘OSA The Optical Society,’ independent of distance into the far field. The illumination wavelength is 520 nm. [Third Place (Tie) OPN 2020 Photo Contest]
—Claudia Imiolczyk, Moritz Floess, Simon Thiele and Harald Giessen, University of Stuttgart, Germany
