title: Non-photochemical laser-induced nucleation of supercooled glacial acetic acid.
abstract: Non-photochemical laser-induced nucleation (NPLIN) of glacial acetic acid (GAA) is demonstrated. The fraction of samples nucleated depends linearly on peak laser power density at low powers (<100 MW cm(-2)) with a threshold of (9.0 ± 4.2) MW cm(-2); at higher laser powers the fraction reaches a plateau of 0.75 ± 0.24 (2σ uncertainties). A simple model based on polarizability of pre-nucleating clusters gives a value of the solid-liquid interfacial tension γ(SL) = 15.5 mJ m(-2). It is hoped that the results will stimulate new developments in experimental and theoretical studies of cluster structure and nucleation in liquids.
authors.affiliation: School of Chemistry, University of Edinburgh, Edinburgh, Scotland EH9 3JJ.
authors.forename: Martin R
authors.initials: MR
authors.lastname: Ward
authors.forename: Stephanie
authors.initials: S
authors.lastname: McHugh
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Alexander