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30 September 2024 Pushing the boundaries of photoalignment
Michael E. McConney, Steven Wolf, Kyung Min Lee, Sarah Hicks, Elizabeth Bernhardt, Nelson V. Tabiryan, Timothy J. Bunning
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Proceedings Volume PC13121, Liquid Crystals XXVIII; PC131210C (2024) https://doi.org/10.1117/12.3028376
Event: Organic Photonics + Electronics, 2024, San Diego, California, United States
Abstract
Cholesteric liquid crystals (CLCs) possess a naturally occurring helical structure that produces striking reflective coloration. The inherent electrical response of the chiral nematic phase is limited, but through the use of polymer stabilization novel electrically driven optical properties can be accessed. Polymer stabilized cholesteric liquid crystals (PS-CLC’s) are formed by polymerizing reactive liquid crystals that have been doped into the chiral nematic liquid crystal. These PS-CLCs demonstrate a range of unique optical behaviors when subjected to electric fields, such as shifting colors and variations in spectral bandwidth. These phenomena are linked to the electrical manipulation of the polymer matrix and the corresponding reaction of the surrounding non-reactive liquid crystals. In this talk, we discuss our latest findings in this field, focusing on uncovering the underlying mechanisms of the electrically induced responses and applying these insights to enhance the performance of these materials.
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Michael E. McConney, Steven Wolf, Kyung Min Lee, Sarah Hicks, Elizabeth Bernhardt, Nelson V. Tabiryan, and Timothy J. Bunning "Pushing the boundaries of photoalignment ", Proc. SPIE PC13121, Liquid Crystals XXVIII, PC131210C (30 September 2024); https://doi.org/10.1117/12.3028376
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KEYWORDS
Polymers
Liquid crystals
Electric fields
Electrical phenomena
Holography
Matrices
Optical lithography
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