title: Porphyrin dimer carbocations with strong near infrared absorption and third-order optical nonlinearity.
authors.affiliation: Department of Chemistry, Oxford University, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
authors.forename: Karl J
authors.initials: KJ
authors.lastname: Thorley
authors.forename: Joel M
authors.initials: JM
authors.lastname: Hales
authors.forename: Harry L
authors.initials: HL
authors.lastname: Anderson
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Perry