Lovšin, M., Cmok, L., Gibb, C. J. et al. (5 more authors) (2025) Ferroelectric Fluids for Nonlinear Photonics: Evaluation of Temperature Dependence of Second-Order Susceptibilities. [Preprint - arXiv]
Abstract
Ferroelectric nematic fluids are promising materials for tunable nonlinear photonics, with applications ranging from second harmonic generation to sources of entangled photons. However, the few reported values of second-order susceptibilities vary widely depending on the molecular architecture. Here, we systematically measure second-order NLO susceptibilities of five different materials that exhibit the ferroelectric nematic phase, as well as the more recently discovered layered smectic A ferroelectric phase. The materials investigated include archetypal molecular architectures as well as mixtures showing roomtemperature ferroelectric phases. The measured values, which range from 0.3 to 20 pm/V, are here reasonably predicted by combining calculations of molecular-level hyperpolarizabilities and a simple nematic potential, highlighting the opportunities of modelling-assisted design for enhanced NLO ferroelectric fluids.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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Keywords: | NLO susceptibility, ferroelectric nematic fluid, Maker fringes method |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) |
Funding Information: | Funder Grant number MRC (Medical Research Council) MR/W006391/1 |
Date Deposited: | 01 Oct 2025 15:31 |
Last Modified: | 01 Oct 2025 15:31 |
Published Version: | https://arxiv.org/abs/2509.11835 |
Identification Number: | 10.48550/arXiv.2509.11835 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:231969 |