title: Demonstration of fluorescence enhancement via Bloch surface waves in all-polymer multilayer structures.
abstract: An all-polymer photonic structure constituted by a distributed Bragg reflector topped with an ultrathin fluorescent polymer film has been studied. A Bloch surface wave resonance has been exploited to improve pumping efficiency. A strongly polarization and angle dependent fluorescence signal is found with respect to the light pumping beam and the emitted wavelength. Matching the most favorable condition for the pump coupling and the collection geometry, the signal obtained from the structure appears to be two orders of magnitude larger than the one of the bare emitting film.
authors.affiliation: Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy. lucia.fornasari@unipv.it.
authors.forename: Lucia
authors.initials: L
authors.lastname: Fornasari
authors.affiliation: Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy. lucia.fornasari@unipv.it.
authors.forename: Francesco
authors.initials: F
authors.lastname: Floris
authors.affiliation: Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy. lucia.fornasari@unipv.it.
authors.forename: Maddalena
authors.initials: M
authors.lastname: Patrini
authors.affiliation: Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso 31, 16146 Genova, Italy. davide.comoretto@unige.it.
authors.forename: Davide
authors.initials: D
authors.lastname: Comoretto
authors.affiliation: Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy. lucia.fornasari@unipv.it.
authors.forename: Franco
authors.initials: F
authors.lastname: Marabelli