Over the last several years, we have pioneered liquid crystal polarization gratings (PGs), in both switchable and
polymer versions. We have also introduced their use in many applications, including mechanical/non-mechanical
laser beam steering and polarization imaging/sensing. Until now, conventional holographic congurations were
used to create PGs where the diameter of the active area was limited to 1-2 inches. In this paper, we discuss a
new holography setup to fabricate large area PGs using spherical waves as the diverging coherent beams. Various
design parameters of this setup are examined for impact on the quality of the recorded PG profile. Using this
setup, we demonstrate a large area polymer PG with approximately 66 inch square area, and present detailed
characterization.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.