Liquid crystals for polarization control in the MWIR

Erika K. Petrak; Thomas G. Baur

doi:10.1117/12.2053458

21 May 2014 Liquid crystals for polarization control in the MWIR

Erika K. Petrak, Thomas G. Baur

Proceedings Volume 9099, Polarization: Measurement, Analysis, and Remote Sensing XI; 909910 (2014) https://doi.org/10.1117/12.2053458
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

Liquid crystal (LC) technology, a critical component in a diverse range of optics for visible wavelengths, has recently been adapted into devices for the mid-wave infrared (MWIR). Optics designs, including variable retarders, attenuators, linear polarization rotators, and tunable filters, have been modified for optimal performance over the range of 3.6 to 5.7 microns. We constructed these designs using material selected for optimal optical behavior in this wavelength range. Description and characterization of these chosen component materials is included along with the performance of each device. We present design challenges, along with future plans and possibilities for MWlR LC technology.

Citation Download Citation

Erika K. Petrak and Thomas G. Baur "Liquid crystals for polarization control in the MWIR", Proc. SPIE 9099, Polarization: Measurement, Analysis, and Remote Sensing XI, 909910 (21 May 2014); https://doi.org/10.1117/12.2053458

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