CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishTransparent Conducting Oxides (TCOs) are emerging as possible alternative constituent materials to replace noble metals such as silver and gold for low-loss plasmonic applications in the Near-Infrared (NIR) and Mid-Infrared (MIR) regimes. In particular, TCO-based nanostructures are extensively investigated for biospectroscopy exploiting their surface enhanced infrared absorption (SEIRA). The latter enhances the absorption from vibrational and rotational modes of nearby bio-molecules making TCO nanostructures, a promising candidate for IR sensing applications. Nevertheless, in order to produce inexpensive devices for lab-on-chip diagnostics, it would be auspicable to achieve surface enhanced infrared absorption with very simple microstructures not requiring nano-size control. In this work, we attempt to demonstrate SEIRA effect with the least challenging fabrication, μm-scale instead of nm-scale, by tailoring both device design and charge density of ITO film. We show that micro-periodic hole arrays in a ITO film are able to produce SEIRA via grating coupling. Such a study opens the way for innovative and disrupting biosensing devices.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Mid-Infrared Plasmonic excitation in Indium Tin Oxide micro-hole arrays |
| Autori: | |
| Data di pubblicazione: | 2018 |
| Rivista: | |
| Handle: | http://hdl.handle.net/20.500.11770/284404 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/20.500.11770/284404
Copyright © 2021