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28 results on '"Diorio, Nicholas"'

3. 60‐3: Invited Paper: Liquid Crystal Optics for AR/VR/MR Near Eye Displays

Author

Huang, Yuge, primary, Lu, Lu, additional, Diorio, Nicholas, additional, Wang, Mengfei, additional, Zhao, Zhexin, additional, Feng, Xiayu, additional, Wang, Junren, additional, Miller, Sawyer, additional, Gollier, Jacques, additional, Cheng, Hsienhui, additional, Chang, Kai‐Han, additional, Peng, Fenglin, additional, and Silverstein, Barry, additional

Published
2023
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4. Opportunities for Research and Development of Hybrid Power Plants

Author

Dykes, Katherine, primary, King, Jennifer, additional, DiOrio, Nicholas, additional, King, Ryan, additional, Gevorgian, Vahan, additional, Corbus, David, additional, Blair, Nate, additional, Anderson, Kate, additional, Stark, Greg, additional, Turchi, Craig, additional, and Moriarty, Patrick, additional

Published
2020
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6. Energy-Storage Modeling: State-of-the-Art and Future Research Directions

Author

Sioshansi, Ramteen, primary, Denholm, Paul, additional, Arteaga, Juan, additional, Awara, Sarah, additional, Bhattacharjee, Shubhrajit, additional, Botterud, Audun, additional, Cole, Wesley, additional, Cortes, Andres, additional, Queiroz, Anderson de, additional, DeCarolis, Joseph, additional, Ding, Zhenhuan, additional, DiOrio, Nicholas, additional, Dvorkin, Yury, additional, Helman, Udi, additional, Johnson, Jeremiah X., additional, Konstantelos, Ioannis, additional, Mai, Trieu, additional, Pandzic, Hrvoje, additional, Sodano, Daniel, additional, Stephen, Gord, additional, Svoboda, Alva, additional, Zareipour, Hamidreza, additional, and Zhang, Ziang, additional

Published
2022
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7. 60‐3: Invited Paper:Liquid Crystal Optics for AR/VR/MR Near Eye Displays

Author

Huang, Yuge, Lu, Lu, Diorio, Nicholas, Wang, Mengfei, Zhao, Zhexin, Feng, Xiayu, Wang, Junren, Miller, Sawyer, Gollier, Jacques, Cheng, Hsienhui, Chang, Kai‐Han, Peng, Fenglin, and Silverstein, Barry

Abstract

Liquid crystal optics are highly favorable for AR/VR/MR near‐eye displays because of the capability of modulating polarization and phase in an ultra‐compact profile. In this presentation, we discuss state‐of‐the‐art LC polarization hologram solutions for AR/VR/MR display technical needs, followed by remaining challenges and opportunities in the way towards high‐image‐quality and all‐day‐wearable near‐eye displays.

Published
2023
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19. Filled liquid crystal depolarizers.

Author

Diorio, Nicholas J., Fisch, Michael R., and West, John L.

Subjects
*LIQUID crystal devices, *SCATTERING (Physics)
Abstract

The construction and properties of scattering type liquid crystal depolarizers are discussed. The Mueller matrices that describe these devices are measured and compared to ideal depolarizers and ideal linear materials. The present depolarizers do not perform as well as crystal pseudodepolarizers. Nevertheless, when polarized light is incident on one of these devices the polarization of the transmitted light can be uniform to within 5%. These devices have the advantage that they can be made to areas as large as 30–30 cm or larger, are inexpensive, and can be electrically switched off and on. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001
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25. Unexpected liquid crystalline behaviour of three-ring bent-core mesogens: bis(4-subst.-phenyl) 2-methyl-iso-phthalates

Author

Weissflog, Wolfgang, primary, Baumeister, Ute, additional, Tamba, Maria-Gabriela, additional, Pelzl, Gerhard, additional, Kresse, Horst, additional, Friedemann, Rudolf, additional, Hempel, Günther, additional, Kurz, Ricardo, additional, Roos, Matthias, additional, Merzweiler, Kurt, additional, Jákli, Antal, additional, Zhang, Cuiyu, additional, Diorio, Nicholas, additional, Stannarius, Ralf, additional, Eremin, Alexey, additional, and Kornek, Ulrike, additional

Published
2012
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28. From Synthesis to Piezoelectric Studies of Central-Ring-Substituted Bent-Core Liquid Crystals and Their Composites

Author

Diorio, Nicholas John, Jr.

Subjects
Alternative Energy, Chemistry, Materials Science, Molecular Chemistry, Molecular Physics, Molecules, Physics, Polymers, liquid crystal, piezoelectricity, bent-core, bent core, x-ray, SAXS, XRD, lovemonkey, polymer, smectic clusters, nematic
Abstract

We have presented the results of various experiments on several central ring substituted bent-core liquid crystals. We have synthesized a bent-core molecule that exhibits a nematic phase and is functionalized for future use in a liquid crystalline elastomer. Various experimental techniques were used to characterize properties such as smectic-like clusters in the nematic phases and piezoelectricity of polymer composites. We provide the detailed results and analysis of the SAXS measurements. The SAXS measurements were useful in analyzing the behavior of the smectic-like clusters that exist in the nematic phase of many bent-core molecules. The clusters have been shown to exist over a wide range of temperatures. We showed that the SAXS measurements agree with previous Cryo-TEM experiments on the three-ring bent-core compounds. We also compared the cluster behavior in two different materials - one with a smectic phase below the nematic and one without. We have found that, as expected, the smectic clusters show more pre-transitional behavior in the material with a smectic phase. Additionally, the clusters, just like the smectic phases of bent-core molecules, likely exhibit polar order. This could be the origin of the piezoelectric and flexoelectric responses found in some bent-core nematics. Addtionally, some of the bent-core molecules form a relatively unstudied phase called the X phase. It is shown to be optically isotropic and ferroelectric, and therefore, piezoelectric. A polymer composite was made from one of these materials. The material showed a piezoelectric response that was in agreement with previous converse piezoelectric measurements under static (DC) fields. It was shown to be comparable to commercially available piezoelectric ceramics. However, under oscillating forces of more than a few hertz, the piezoelectric response dropped off significantly likely due to stiffening of the polymer under oscillating strain with increasing frequency.

Published
2013

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