Fluorescence excitation enhancement by Bloch surface wave in all-polymer one-dimensional photonic structure

Journal Article · Mon Aug 04 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4892423· OSTI ID:22314516

Fornasari, L.; Floris, F.; Patrini, M.; Guizzetti, G.; Canazza, G.; Comoretto, D. ^[1]

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1. Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, via Dodecaneso 31, 16146 Genova (Italy)

We demonstrate photoluminescence excitation enhancement in an all-polymer flexible one-dimensional photonic crystal structure capped with a fluorescent organic ultrathin film. When optical matching conditions between the excitation beam and the Bloch Surface Wave mode supported by the photonic structure are achieved, a ten times enhancement of the photoluminescence is observed. We notice that in these systems luminescence signal reinforcement is achieved by increasing the pump efficiency with no need of spectral resonance to the emission of the chosen fluorophore. All these features make these systems suitable candidates for easy, flexible, and cheap fluorescent sensing.

• OSTI ID: 22314516
• Journal Information: Applied Physics Letters, Vol. 105, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYSTAL STRUCTURE
EXCITATION
FLUORESCENCE
PHOTOLUMINESCENCE
POLYMERS
THIN FILMS
WAVE PROPAGATION