title: All-photonic molecular half-adder.
abstract: One molecule acts as both an AND and an XOR Boolean logic gate that share the same two photonic inputs. The molecule comprises a half-adder, adding two binary digits with only light as inputs and outputs, and consists of three covalently linked photochromic moieties, a spiropyran and two quinoline-derived dihydroindolizines. The AND function is based on the absorption properties of the molecule, whereas the XOR function is based on an off-on-off response of the fluorescence to the inputs that results from interchromophore excited-state quenching interactions. The half-adder is simple to operate and can be cycled many times.
authors.affiliation: Department of Chemical and Biological Engineering, Physical Chemistry, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. a-son@chalmers.se
authors.forename: Joakim
authors.initials: J
authors.lastname: Andréasson
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Straight
authors.forename: Gerdenis
authors.initials: G
authors.lastname: Kodis
authors.forename: Choong-Do
authors.initials: CD
authors.lastname: Park
authors.forename: Michael
authors.initials: M
authors.lastname: Hambourger
authors.forename: Miguel
authors.initials: M
authors.lastname: Gervaldo
authors.forename: Bo
authors.initials: B
authors.lastname: Albinsson
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Moore
authors.forename: Ana L
authors.initials: AL
authors.lastname: Moore
authors.forename: Devens
authors.initials: D
authors.lastname: Gust