20.500.12556/RUL-179125 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 ferroelectric nematic fluid NLO susceptibility feromagnetne nematske tekočine optični materiali true false true Angleški jezik Slovenski jezik Članek v reviji 2026-02-05 13:00:57 2026-02-05 13:01:01 2026-03-20 14:39:50 0000-00-00 00:00:00 2026 0 0 11 str. iss. 5, art. e03018 Vol. 14 Feb. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 537 2195-1071 10.1002/adom.202503018 264300547 Advanced_Optical_Materials_-_2026_-_Lovsin_-_Ferroelectric_Fluids_for_Nonlinear_Photonics__Evaluation_of_Temperature.pdf Advanced_Optical_Materials_-_2026_-_Lovsin_-_Ferroelectric_Fluids_for_Nonlinear_Photonics__Evaluation_of_Temperature.pdf 1 DBA24EA84B9CA6304FB85E2BC9A5842E aa34a4b92d2ac593424a176007c0a87bd6b62869b407bab3ed300614148f84c5 b9cd8a6a-05a5-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227542 https://advanced.onlinelibrary.wiley.com/doi/10.1002/adom.202503018 1 3ef16758-028a-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227312 https://doi.org/10.5281/zenodo.17983956 0 2d7269e7-2462-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=231009 Fakulteta za matematiko in fiziko 0 0 0