Multi-twist retarders for broadband polarization transformation

Ravi K. Komanduri; Jihwan Kim; Kristopher F. Lawler; Michael J. Escuti

doi:10.1117/12.913795

10 February 2012 Multi-twist retarders for broadband polarization transformation

Ravi K. Komanduri, Jihwan Kim, Kristopher F. Lawler, Michael J. Escuti

Proceedings Volume 8279, Emerging Liquid Crystal Technologies VII; 82790E (2012) https://doi.org/10.1117/12.913795
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We introduce a family of broadband retarders, comprised of a low number of twisted nematic liquid crystal layers, that accomplishes well-controlled polarization transformation for nearly any bandwidth desired. For example, we show that broadband linear to circular polarization conversion can be achieved with only two twist layers where the performance matches the popular three-waveplate approach by Pancharatnam. Using liquid crystal polymers on a single substrate, we show how these multi-twist retarders are embodied as a monolithic birefringent plate with excellent performance and potentially very low cost.

Citation Download Citation

Ravi K. Komanduri, Jihwan Kim, Kristopher F. Lawler, and Michael J. Escuti "Multi-twist retarders for broadband polarization transformation", Proc. SPIE 8279, Emerging Liquid Crystal Technologies VII, 82790E (10 February 2012); https://doi.org/10.1117/12.913795

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