Progress on large-area polarization grating fabrication

Matthew N. Miskiewicz; Jihwan Kim; Yanming Li; Ravi K. Komanduri; Michael J. Escuti

doi:10.1117/12.921572

15 May 2012 Progress on large-area polarization grating fabrication

Matthew N. Miskiewicz, Jihwan Kim, Yanming Li, Ravi K. Komanduri, Michael J. Escuti

Proceedings Volume 8395, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI; 83950G (2012) https://doi.org/10.1117/12.921572
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

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.

Citation Download Citation

Matthew N. Miskiewicz, Jihwan Kim, Yanming Li, Ravi K. Komanduri, and Michael J. Escuti "Progress on large-area polarization grating fabrication", Proc. SPIE 8395, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI, 83950G (15 May 2012); https://doi.org/10.1117/12.921572

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