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Plasmonic Structures for Near Infrared Applications

Published online by Cambridge University Press:  22 January 2014

Francesco Floris
Affiliation:
Department of Physics – University of Pavia, Via Agostino Bassi 6, I-27100 Pavia (PV), Italy.
Franco Marabelli
Affiliation:
Department of Physics – University of Pavia, Via Agostino Bassi 6, I-27100 Pavia (PV), Italy.
Maddalena Patrini
Affiliation:
Department of Physics – University of Pavia, Via Agostino Bassi 6, I-27100 Pavia (PV), Italy.
Lucia Fornasari
Affiliation:
Department of Physics – University of Pavia, Via Agostino Bassi 6, I-27100 Pavia (PV), Italy.
Francesco Quochi
Affiliation:
Department of Physics – University of Cagliari, S.P. 8 Km 0.7, I-09042 Monserrato (CA), Italy.
Cristiana Figus
Affiliation:
Department of Physics – University of Cagliari, S.P. 8 Km 0.7, I-09042 Monserrato (CA), Italy.
Giovanni Bongiovanni
Affiliation:
Department of Physics – University of Cagliari, S.P. 8 Km 0.7, I-09042 Monserrato (CA), Italy.
Andrea Mura
Affiliation:
Department of Physics – University of Cagliari, S.P. 8 Km 0.7, I-09042 Monserrato (CA), Italy.
Michele Saba
Affiliation:
Department of Physics – University of Cagliari, S.P. 8 Km 0.7, I-09042 Monserrato (CA), Italy.
Paola Pellecani
Affiliation:
Plasmore S.r.l. – Via Grazia Deledda 4, I-21020 Ranco (VA), Italy.
Andrea Valsesia
Affiliation:
Plasmore S.r.l. – Via Grazia Deledda 4, I-21020 Ranco (VA), Italy.
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Abstract

We report on the development of a plasmonic-photonic coupled platform based on a plasmonic periodic nanostructure and a host matrix for active media in the visible-near infrared range, constituted by a thin film of sol-gel glass. Here, we report on preliminary results about two main tasks of the research work. On one side, we have studied and optimized the surface that supports plasmonic resonances with tunable wavelengths. On the other side, we focused on improving the sol-gel techniques to form and deposit thin films appropriate for covering the previous surface as well as to protect it (i.e. for sensing applications), embed suitable fluorophores (for active device applications) while avoiding metal-induced radiative emission quenching. Besides structural and optical characterization of the considered structures and films, finite-difference time-domain numerical simulations have been performed, in order to give a feedback on the structure features and thereby interpret its optical response.

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Articles
Copyright
Copyright © Materials Research Society 2014 

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References

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