20.500.12556/DiRROS-25137 Ferroelectric fluids for nonlinear photonics evaluation of temperature dependence of second-order susceptibilities Ferroelectric fluids for nonlinear photonics: evaluation of temperature dependence of second-order susceptibilities 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 room-temperature ferroelectric phases. The measured values, which range from 0.3 to 20 pm V−1, 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. ferromagnetic nematic fluids maker fringes method nonlinear photonics nonlinear optical materials feromagnetne nematske tekočine optični materiali true false true Wiley Nemčija Angleški jezik Slovenski jezik © 2026 The Author(s). Neznano 2026-01-12 13:43:55 2026-01-12 13:43:55 2026-01-13 03:45:14 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Soavtorji iz Slovenije: Luka Cmok, Alenka Mertelj, Irena Drevenšek-Olenik, Nerea Sebastián; Opis vira z dne 12. 1. 2026; str. 1-11 iss. , [article no.] e03018 Vol. 14 [in press] 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-09-12 0000-00-00 2026-01-04 537 2195-1071 10.1002/adom.202503018 264300547 https://advanced.onlinelibrary.wiley.com/doi/10.1002/adom.202503018 1 5eae2e0f-efb4-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=37865 RAZ_Lovsin_Matija_2026.pdf RAZ_Lovsin_Matija_2026.pdf The data that support the findings of this study are openly available in Zenodo at https://doi.org/10.5281/zenodo.17983956. 1 5ABC72F9F93C7904D173A99B18C70284 c5e05591c154cb54d197d2f5b1da160537b71bf2482898e40fb1ef2a05531adf f42a7993-efb4-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=37869 Institut Jožef Stefan 0 0 0