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 | 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.
https://hdl.handle.net/11583/2495800
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo