Characterization
of materials for sensing applications
Hydrogen is considered the future clean carrier of
energy. Optical hydrogen sensor do not pose risk to generate sparks in
an explosive hydrogen atmosphere. Thin films and alloys are
characterized for Hydrogen sensing. Optical and structural properties are
investigated. Optical sensor devices realization is the
final goal.
Metal and
metal/graphene chips for biosensing
Surface Plasmon Resonance
(SPR) is a widely used technique to develop biosensor since it allows real-time
and label-free detection of biomolecules with high sensitivity. The most
common way to excite surface plasmons is the Kretschmann configuration: the
base of a high index prism is coated with a metal film, a TM-polarized light
enters the prism and impinges on the prism-metal interface at an angle greater
than the critical angle. Development of configuration in optical fibers is
useful for in-line process controls. The metallic film usually consists of
noble metals, typically gold and silver. The potentiality of the use of other
materials, such as Palladium and Iridium, are investigated for the
so-called Inverted Surface Plasmon Resonance (ISPR). Use of graphene in
biodevices is investigated.
Surface Plasmon Resonance
optical transducers
Development of a new device that
allows two complementary measurements (SPR angular resolve and SPR
imaging) on the same setup with no moving parts [Alain J. Corso, Sara
Zuccon, Paola Zuppella, Maria G. Pelizzo, Flexible SPR system able to switch
between Kretschmann and SPRi, Proc. SPIE 9506, Optical Sensors 2015,
95061D]. International patent application pending: Apparatus for SPR
detection capable of switching between imaging and angular resolved
spectroscopy, PCT/IB2015/058148
References
Gerlin, F., Zuppella, P., Corso, A. J., Nardello, M., Tessarolo, E., Bacco, D., & Pelizzo, M. G. (2016). Stability and extreme ultraviolet photo-reduction of graphene during CK edge NEXAFS characterization. Surface and Coatings Technology, 296, 211-215, (2016).
Cennamo, N., Zuppella, P., Bacco, D., Corso, A. J., Pelizzo, M. G., & Zeni, L. SPR sensor platform based on a novel metal bilayer applied on D–shaped plastic optical fibers for refractive index measurements in the range 1.38–1.42. IEEE Sensors Journal, 16(12), 4822-4827, (2016).
Cerea, Andrea, Denis Garoli, Pierfrancesco Zilio, Michele Dipalo, Eugenio Calandrini, Andrea Jacassi, Valeria Caprettini, Angelica Carrara, Maria G. Pelizzo, and Francesco De Angelis. "Modified three-dimensional nanoantennas for infrared hydrogen detection." Microelectronic Engineering (2016).
Paola Zuppella · Francesca Gerlin · Alain Jody Corso · Marco Nardello · Enrico Tessarolo · Davide Bacco · Daniele Scarpa · Alberto Andrighetto · Maria G. Pelizzo, Nd:YAG Laser Damage of Graphene–Nickel Interfaces, Lasers Manuf. Mater. Process. (2016) 3:131–139
P. Zuppella, E. Pasqualotto, S. Zuccon, F. Gerlin, A.J. Corso, M. Scaramuzza, A. De Toni, A. Paccagnella, and M.G. Pelizzo, “Palladium on Plastic Substrates for Plasmonic Devices”, Sensors 15(1), 1138–1147, 2015
Zuccon, Sara; Zuppella, Paola; Cristofani, Michele; Silvestrini, Simone; Corso, Alain; Maggini, Michele; Pelizzo, Maria G., Functional palladium metal film for plasmonic devices: an experimental proof, Journal of Optics 16 055001, 2014
P. Zuppella, S. Tosatto, A.J. Corso, S. Zuccon , M.G. Pelizzo, Graphene-noble metal bilayers for inverted surface plasmon resonance biosensors, J. Opt. 15(5), 055010, 2013
