20.500.12556/RUL-176680 Polarity mapping in liquid crystals using laser-induced heating The investigation of phase behaviour in the new class of materials showing ferroelectric nematic and related phases can greatly benefit from methods that combine thermal control with structural and polarity-sensitive imaging. In this work, we present a technique that integrates focused infrared laser heating with second harmonic generation microscopy, enabling rapid, localised control of temperature and simultaneous polarity-resolved imaging. This approach allows for spatially resolved visualisation of multiple coexisting liquid crystalline phases and their polar character in a single-shot experiment – significantly accelerating analysis compared to conventional heating-stage-based methods. We demonstrate the method on conventional nematic LCs and a complex ferroelectric nematic LC, resolving a rich sequence of mesophases and validating induced temperature profiles through numerical simulations. Our approach offers strong potential for high-throughput screening of novel materials and exploration of metastable phases. ferroelectric nematic liquid crystals laser heating temperature gradient microscopy opto-thermal manipulation phase coexistence SHG microscopy feroelektrični nematski tekoči kristali lasersko segrevanje temperaturni gradient mikroskopija true false true Angleški jezik Slovenski jezik Članek v reviji 2025-12-08 15:15:19 2025-12-08 15:15:19 2025-12-23 04:10:24 0000-00-00 00:00:00 2025 0 0 Str. 792–800 no. 9/10 Vol. 52 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 538.9 0267-8292 10.1080/02678292.2025.2524438 243236099 Polarity_mapping_in_liquid_crystals_using_laser-induced_heating.pdf Polarity_mapping_in_liquid_crystals_using_laser-induced_heating.pdf 1 31684DE835F89FC7B4D9B77CAB4AF82C 9c8bc787c598df289226acbfb43d030291aaa002596f1b8e3af24ed4bd97572a 23bfc27c-d440-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223174 https://www.tandfonline.com/doi/full/10.1080/02678292.2025.2524438 0 16fd3fd0-d440-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223173 Fakulteta za matematiko in fiziko 0 0 0