The lateral confinement of Bloch surface waves on a patterned multilayer is investigated by means of leakage radiation microscopy (LRM). Arrays of nanometric polymeric waveguides are fabricated on a proper silicon-nitride/silicon-oxide multilayer grown on a standard glass coverslip. By exploiting the functional properties of the polymer, fluorescent proteins are grafted onto the waveguides. A fluorescence LRM analysis of both the direct and the Fourier image plane reveals that a substantial amount of emitted radiation couples into a guided mode and then propagates into the nanometric waveguide. The observations of the mode are supported by numerical simulations.

Bloch surface waves-controlled fluorescence emission: coupling into nanometer-sized polymeric waveguides / Ballarini, Mirko; Frascella, Francesca; Enrico, Emanuele; Mandracci, Pietro; De Leo, N.; Michelotti, F.; Giorgis, Fabrizio; Descrovi, Emiliano. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 100:(63305)(2012). [10.1063/1.3684272]

Bloch surface waves-controlled fluorescence emission: coupling into nanometer-sized polymeric waveguides

BALLARINI, MIRKO;FRASCELLA, FRANCESCA;ENRICO, EMANUELE;MANDRACCI, Pietro;GIORGIS, FABRIZIO;DESCROVI, EMILIANO
2012

Abstract

The lateral confinement of Bloch surface waves on a patterned multilayer is investigated by means of leakage radiation microscopy (LRM). Arrays of nanometric polymeric waveguides are fabricated on a proper silicon-nitride/silicon-oxide multilayer grown on a standard glass coverslip. By exploiting the functional properties of the polymer, fluorescent proteins are grafted onto the waveguides. A fluorescence LRM analysis of both the direct and the Fourier image plane reveals that a substantial amount of emitted radiation couples into a guided mode and then propagates into the nanometric waveguide. The observations of the mode are supported by numerical simulations.
File in questo prodotto:
File Dimensione Formato  
2495800.pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 1.73 MB
Formato Adobe PDF
1.73 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2495800
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo