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Proceedings Paper

Multi-twist retarders for broadband polarization transformation
Author(s): Ravi K. Komanduri; Jihwan Kim; Kristopher F. Lawler; Michael J. Escuti
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Paper 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.

Paper Details

Date Published: 11 February 2012
PDF: 10 pages
Proc. SPIE 8279, Emerging Liquid Crystal Technologies VII, 82790E (11 February 2012); doi: 10.1117/12.913795
Show Author Affiliations
Ravi K. Komanduri, North Carolina State Univ. (United States)
Jihwan Kim, North Carolina State Univ. (United States)
Kristopher F. Lawler, North Carolina State Univ. (United States)
Michael J. Escuti, North Carolina State Univ. (United States)


Published in SPIE Proceedings Vol. 8279:
Emerging Liquid Crystal Technologies VII
Liang-Chy Chien, Editor(s)

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