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Sökning: WFRF:(Berger Andreas) > (2010-2014) > (2013)

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1.
  • Maccaferri, Nicolò, et al. (författare)
  • Polarizability and magnetoplasmonic properties of magnetic general nanoellipsoids
  • 2013
  • Ingår i: Optics Express. - : Optica Publishing Group. - 1094-4087. ; 21:8, s. 9875-9889
  • Tidskriftsartikel (refereegranskat)abstract
    • An approach to compute the polarizability tensor of magnetic nanoparticles having general ellipsoidal shape is presented. We find a surprisingly excellent quantitative agreement between calculated and experimental magneto-optical spectra measured in the polar Kerr configuration from nickel nanodisks of large size (exceeding 100 nm) with circular and elliptical shape. In spite of its approximations and simplicity, the formalism presented here captures the essential physics of the interplay between magneto-optical activity and the plasmonic resonance of the individual particle. The results highlight the key role of the dynamic depolarization effects to account for the magneto-optical properties of plasmonic nanostructures.
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2.
  • Maccaferri, Nicolò, et al. (författare)
  • Tuning the Magneto-Optical Response of Nanosize Ferromagnetic Ni Disks Using the Phase of Localized Plasmons
  • 2013
  • Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 111:16
  • Tidskriftsartikel (refereegranskat)abstract
    • We explore the influence of the phase of localized plasmon resonances on the magneto-optical activity of nanoferromagnets. We demonstrate that these systems can be described as two orthogonal damped oscillators coupled by the spin-orbit interaction. We prove that only the spin-orbit induced transverse plasmon plays an active role on the magneto-optical properties by controlling the relative amplitude and phase lag between the two oscillators. Our theoretical predictions are fully confirmed by magneto-optical Kerr effect and optical extinction measurements in nanostructures of different size and shape.
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3.
  • Mondello, Stefania, et al. (författare)
  • The Challenge of Mild Traumatic Brain Injury : Role of Biochemical Markers in Diagnosis of Brain Damage
  • 2013
  • Ingår i: Medicinal research reviews (Print). - : John Wiley & Sons. - 0198-6325 .- 1098-1128. ; 34:3, s. 503-531
  • Forskningsöversikt (refereegranskat)abstract
    • During the past decade there has been an increasing recognition of the incidence of mildtraumatic brain injury (mTBI) and a better understanding of the subtle neurological and cognitive deficitsthat may result from it. A substantial, albeit suboptimal, effort has been made to define diagnostic criteriafor mTBI and improve diagnostic accuracy. Thus, biomarkers that can accurately and objectively detectbrain injury after mTBI and, ideally, aid in clinical management are needed. In this review, we discuss thecurrent research on serum biomarkers for mTBI including their rationale and diagnostic performances.Sensitive and specific biomarkers reflecting brain injury can provide important information regardingTBI pathophysiology and serve as candidate markers for predicting abnormal computed tomographyfindings and/or the development of residual deficits in patients who sustain an mTBI. We also outline theroles of biomarkers in settings of specific interest including pediatric TBI, sports concussions and militaryinjuries, and provide perspectives on the validation of such markers for use in the clinic. Finally, emergingproteomics-based strategies for identifying novel markers will be discussed.
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  • Resultat 1-3 av 3

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