Sinusoidal plasmonic crystals for bio-detection sensors

Corrugated gratings coated with thin films of noble metals have been recognized to be useful substrates for bio-detection by means of the excitation of surface plasmon polaritons (SPP). These substrates show superior performances in terms both of detection limit and of simplicity of detection config...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Microelectronic engineering 2011-08, Vol.88 (8), p.1898-1901
Hauptverfasser:	Zacco, G., Romanato, F., Sonato, A., Sammito, D., Ruffato, G., Morpurgo, M., Silvestri, D., Carli, M., Schiavuta, P., Brusatin, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bio-device Biological and medical sciences Biosensors Biotechnology Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) Condensed matter: electronic structure, electrical, magnetic, and optical properties Corrugating Corrugation Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronics Evaporation Exact sciences and technology Fundamental and applied biological sciences. Psychology General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Interference lithography Lasers Lithography Methods. Procedures. Technologies Microelectronic fabrication (materials and surfaces technology) Noble metals Physics Polaritons Recognition Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Sinusoidal plasmonic crystal Surface and interface electron states Various methods and equipments
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Corrugated gratings coated with thin films of noble metals have been recognized to be useful substrates for bio-detection by means of the excitation of surface plasmon polaritons (SPP). These substrates show superior performances in terms both of detection limit and of simplicity of detection configuration compared to the classical Kretschmann SPP. A 1D sinusoidal corrugation of the metal-air interface has been fabricated by means of laser interference lithography and metal evaporation. In this paper we report progress in the optimization of the sinusoidal grating surface profile. The quality of the fabricated samples has been proved by the good agreement between experimental and simulated results.
ISSN:	0167-9317 1873-5568
DOI:	10.1016/j.mee.2011.01.031