2023/10/10 by Niyazi Ulaş Dinç, Christophe Moser, Dinc, Niyazi Ulas +3
Engineering · #Advanced Optical Imaging Technologies #FOS: Physical sciences #Nonlinear Optical Materials Studies #Optics (physics.optics) #Photonic and Optical Devices
paper · pdf · doi:10.48550/arxiv.2310.06350
openalex publication_date 2023/10/10 · openalex created_date 2023/10/12 · openalex updated_date 2026/07/28
We demonstrate the fabrication of volume holograms using 2-photon polymerization with dynamic control of light exposure. We refer to our method as (3+1)D printing. Volume holograms that are recorded by interfering reference and signal beams have a diffraction efficiency relation that is inversely proportional with the square of the number of superimposed holograms. By using (3+1)D printing for fabrication, the refractive index of each voxel is created independently and thus by, digitally filtering the undesired interference terms, the diffraction efficiency is now inversely proportional to the number of multiplexed gratings. We experimentally demonstrated this linear dependence by recording M=50 volume gratings. To the best of our knowledge, this is the first experimental demonstration of distributed volume holograms that overcome the 1/M2 limit.