20.500.12556/RUL-155067 Towards a comprehensive characterization of spatio‑temporal dependence of light‑induced electromagnetic forces in dielectric liquids The interaction of localized light with matter generates optical electrostriction within dielectric fluids, leading to a discernible change in the refractive index of the medium according to the excitation’s light profile. This optical force holds critical significance in optical manipulation and plays a fundamental role in numerous photonic applications. In this study, we demonstrate the applicability of the pump-probe, photo-induced lensing (PIL) method to investigate optical electrostriction in various dielectric liquids. Notably, the thermal and nonlinear effects are observed to be temporally decoupled from the electrostriction effects, facilitating isolated observation of the latter. Our findings provide a comprehensive explanation of optical forces in the context of the recently introduced microscopic Ampère electromagnetic formalism, which is grounded in the dipolar approximation of electromagnetic sources within matter and characterizes electrostriction as an electromagnetic-induced stress within the medium. Here, the optical force density is re-obtained through a new Lagrangian approach. electrostriction radiation forces photo-induced lensing effect pressure-transients Kerr lens elektrostrikcija sevalna sila učinek fotoinduciranega lečenja prehodni tlak Kerrova leča true false true Angleški jezik Slovenski jezik Članek v reviji 2024-03-19 08:59:31 2024-03-19 08:59:36 2024-03-20 04:12:25 0000-00-00 00:00:00 2024 0 0 13 str. Vol. 14, art. 5595 Mar. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 535 2045-2322 10.1038/s41598-024-56176-1 189407747 Astrath_...-Towards_a_comprehensive_characterization_of_spatio‑temporal_dependence_of_light‑induced_electromagnetic_forces_in_dielectric_liquids.pdf Astrath_...-Towards_a_comprehensive_characterization_of_spatio‑temporal_dependence_of_light‑induced_electromagnetic_forces_in_dielectric_liquids.pdf 1 4CA0D208C306898D95F9FC0734922049 9ef869083f79cab3a86b53ec63e41b0c5dcc8956c30e307964d58843c5817f10 074a9db7-e5cf-11ee-8a73-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181823 https://www.nature.com/articles/s41598-024-56176-1 1 a1fc02c4-e5c6-11ee-8a73-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181812 Fakulteta za strojništvo 0 0 0