title: Liquid crystal director dynamics imaged using two-photon fluorescence microscopy with remote focusing.
abstract: We introduce a novel imaging technique adopting remote focusing for resolving the axial dynamics in the director field for liquid crystals. The high axial time resolution of our approach is demonstrated by imaging directly the evolution of the director field for an initially splayed nematic layer subject to a sudden voltage pulse. Images of the switching dynamics are presented, revealing transient state director configurations and changes in topology of the liquid crystal layer.
authors.affiliation: Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, United Kingdom. patrick.salter@eng.ox.ac.uk
authors.forename: P S
authors.initials: PS
authors.lastname: Salter
authors.forename: G
authors.initials: G
authors.lastname: Carbone
authors.forename: E J
authors.initials: EJ
authors.lastname: Botcherby
authors.forename: T
authors.initials: T
authors.lastname: Wilson
authors.forename: S J
authors.initials: SJ
authors.lastname: Elston
authors.forename: E P
authors.initials: EP
authors.lastname: Raynes
mesh_terms: D050866:Liquid Crystals / Q000737:chemistry*; D008856:Microscopy, Fluorescence / Q000379:methods*; D017785:Photons; D013997:Time Factors