English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/136536
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Magnetoplasmonic Interferometers and Applications

AuthorsMartín-Becerra, Diana ; González-Díaz, Juan B. ; Temnov, Vasily V.; Armelles Reig, Gaspar ; Thomay, Tim; Leitenstorfer, Alfred; Bratschitsch, Rudolf; García-Martín, Antonio ; González Sagardoy, María Ujué
Issue DateJun-2012
Citation2nd Early Stage Researchers Workshop in Nanoscience (2012)
AbstractSurface plasmons polaritons (SPP) are evanescent waves that propagate along a dielectric-metal interface. They can be confined in subwavelength metal structures, i.e. below the diffraction limit, which leads to many possible applications, including miniaturized optical devices. Within that context, the development of active plasmonics is important to achieve nanophotonic devices with advanced functionalities. This requires a system where the plasmon properties can be manipulated using an external agent. Among the different control agents considered so far, the magnetic field seems a promising candidate, since it is able to modify the dispersion relation of SPP at reasonable magnetic field strengths, and with a high switching speed. This modulation comes from the non-diagonal elements of the dielectric tensor, εij, appearing when the magnetic field is turned on. For noble metals, the ones typically used in plasmonics, these elements are proportional to the applied magnetic field but, unfortunately, very small at field values reasonable for developing applications. On the other hand, ferromagnetic metals have sizeable εij values at small magnetic fields (proportional to their magnetization), but are optically too absorbent. A smart system to develop magnetic field tunable plasmonic devices is the use of multilayers of noble and ferromagnetic metals. That is the framework of the present work, where we analyze the magnetic field induced SPP wavevector modulation (Ak) in Au/Co/Au films as a function of the wavelength and its possible application as a sensor.
DescriptionComunicación presentada en el 2nd Early Stage Researchers Workshop in Nanoscience, celebrado en Madrid el 28 y 29 de junio de 2012.
Appears in Collections:(IMN-CNM) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
magnetoplasmonic_Martin.pdfFull abstract104,59 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.