We report on the practical implementation of an angularly resolved ellipsometric optical sensing scheme based on Bloch surface waves sustained by tantala/titania/silica multilayers. The angular resolution is obtained by a focused illumination at fixed wavelength and detecting the angular reflectance spectrum by means of a CMOS array detector. The experimental results, obtained by using one tantala/titania/silica/ multilayer defined structure, show the limit of detection below 6.5*E-7 RIU/Hz^(1/2). The physical characterization of the biosensors and their practical use with biological protocols is reported.

Phase-sentitive bloch surface wave biosensors / Sinibaldi, A.; Anopchenko, A.; Rizzo, Riccardo; Michelotti, F.; Danz, N.; Munzert, P.; Rivolo, Paola; Ricciardi, Serena; Frascella, Francesca. - (2015), pp. 1-4. (Intervento presentato al convegno 18th Conference on Sensors and Microsystems, AISEM 2015 nel 2015) [10.1109/AISEM.2015.7066790].

Phase-sentitive bloch surface wave biosensors

RIZZO, RICCARDO;RIVOLO, PAOLA;RICCIARDI, SERENA;FRASCELLA, FRANCESCA
2015

Abstract

We report on the practical implementation of an angularly resolved ellipsometric optical sensing scheme based on Bloch surface waves sustained by tantala/titania/silica multilayers. The angular resolution is obtained by a focused illumination at fixed wavelength and detecting the angular reflectance spectrum by means of a CMOS array detector. The experimental results, obtained by using one tantala/titania/silica/ multilayer defined structure, show the limit of detection below 6.5*E-7 RIU/Hz^(1/2). The physical characterization of the biosensors and their practical use with biological protocols is reported.
2015
9781479985913
9781479985913
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2655790
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