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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Bowman, Robert M.
Queen's University Belfast
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2022Searching for refractory plasmonic materials: the structural and optical properties of Au3Zr intermetallic thin filmscitations
- 2022Optical properties of Au-Hf thin filmscitations
- 2019The optical properties of AuZr intermetallic alloys
- 2018Design and fabrication of plasmonic cavities for magneto-optical sensingcitations
- 2018Mechanism of Gold-Assisted Exfoliation of Centimeter-Sized Transition-Metal Dichalcogenide Monolayerscitations
- 2016A review of high magnetic moment thin films for microscale and nanotechnology applicationscitations
- 2014Ferromagnetism in DyRh and DyRhX (X = Fe, Ni, Co, Gd) thin filmscitations
- 2013Improved magnetization in sputtered dysprosium thin filmscitations
- 2012Magnetisation of 2.6T in Gadolinium Thin Filmscitations
- 2008CH022
- 2007Toward Self-Assembled Ferroelectric Random Access Memories:Hard-Wired Switching Capacitor Arrays with Almost Tb/in.2 Densitiescitations
- 2007Toward Self-Assembled Ferroelectric Random Access Memories: Hard-Wired Switching Capacitor Arrays with Almost Tb/in.2 Densitiescitations
- 2007Nanoscale ferroelectrics machined from single crystalscitations
- 2006Investigating the effects of reduced size on the properties of ferroelectricscitations
- 2006Perovskite lead zirconium titanate nanorings: Towards nanoscale ferroelectriccitations
- 2006Scaling of domain periodicity with thickness measured in BaTiO3 single crystal lamellae and comparison with other ferroicscitations
- 2004Understanding thickness effects in thin film capacitorscitations
- 2004Thickness independence of true phase transition temperatures in barium strontium titanate filmscitations
- 2004Intrinsic dielectric response in ferroelectric nano-capacitorscitations
- 2004Thin film capacitor cut from single crystals using focused ion beam millingcitations
- 2004Characteristics of the interfacial capacitance in thin film Ba0.5Sr0.5TiO3 capacitors with SrRuO3 and (La, Sr)CoO3 bottom electrodescitations
- 2004Maximum of dielectric permittivity caused by structural transition in ferroelectric BaTiO3-SrTiO3 superlattices
- 2002Exploring grain size as a cause for dead-layer effects in thin film capacitorscitations
- 2002Thickness-induced stabilization of ferroelectricity in SrRuO3/Ba0.5Sr0.5TiO3/Au thin film capacitorscitations
- 2001Investigation of dead-layer thickness in SrRuO3/Ba0.5Sr0.5TiO3/Au thin-film capacitorscitations
- 2001Enhancement of dielectric constant and associated coupling of polarization behavior in thin film relaxor superlatticescitations
Places of action
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article
Design and fabrication of plasmonic cavities for magneto-optical sensing
Abstract
The design and fabrication of a novel plasmonic cavity, intended to allow far-field recovery of signals arising from near field magneto-optical interactions, is presented. Finite element modeling is used to describe the interaction between a gold film, containing cross-shaped cavities, with a nearby magnetic under-layer. The modeling revealed strong electric field confinement near the center of the cross structure for certain optical wavelengths, which may be tuned by varying the length of the cross through a range that is compatible with available fabrication techniques. Furthermore, the magneto optical Kerr effect (MOKE) response of the composite structure can be enhanced with respect to that of the bare magnetic film. To confirm these findings, cavities were milled within gold films deposited upon a soluble film, allowing relocation to a ferromagnetic film using a float transfer technique. Cross cavity arrays were fabricated and characterized by optical transmission spectroscopy prior to floating, revealing resonances at optical wavelengths in good agreement with the finite element modeling. Following transfer to the magnetic film, circular test apertures within the gold film yielded clear magneto-optical signals even for diameters within the sub-wavelength regime. However, no magneto-optical signal was observed for the cross cavity arrays, since the FIB milling process was found to produce nanotube structures within the soluble under-layer that adhered to the gold. Further optimization of the fabrication process should allow recovery of magneto-optical signal from cross cavity structures.