Cover Picture: Theory of Chiral Plasmonic Nanostructures Comprising Metal Nanocrystals and Chiral Molecular Media (ChemPhysChem 10/2012)
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چکیده
منابع مشابه
Chiral Plasmonic Nanostructures
Noble-metal nanoparticles (NPs) occupy the top drawer in the toolbox of scientists working with optical materials. These NPs confine light in extremely small volumes, and their individual scattering properties can be designed virtually at will by shaping and arranging the NPs carefully. When their behaviour is considered collectively, the NPs can also be used as building blocks (meta-atoms or m...
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The problem of unbounded uniaxial chiral omega media in the presence of both static electric and magnetic point charges is investigated. For this purpose scalar electric and magnetic potentials in these media are introduced. Using these potentials, the corresponding electric and magnetic fields are determined. The similar problem of static electric and magnetic current sources with the goal of ...
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In the present paper, the expressions for scalar and vector potentials in lossless isotropic chiral media are analyzed. Propagating eigenvalues of these potentials are then obtained. Furthermore by decomposition of sources and fields in a chiral medium, we introduce the auxiliary right-and left-handed potentials and find the associated fields. These potentials are used to solve the problem of a...
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The refractive index sensitivity of plasmonic fields has been exploited for over 20 years in analytical technologies. While this sensitivity can be used to achieve attomole detection levels, they are in essence binary measurements that sense the presence/absence of a predetermined analyte. Using plasmonic fields, not to sense effective refractive indices but to provide more "granular" informati...
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Circular dichroism spectra of naturally occurring molecules and also of synthetic chiral arrangements of plasmonic particles often exhibit characteristic bisignate shapes. Such spectra consist of peaks next to dips (or vice versa) and result from the superposition of signals originating from many individual chiral objects oriented randomly in solution. Here we show that by first aligning and th...
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ژورنال
عنوان ژورنال: ChemPhysChem
سال: 2012
ISSN: 1439-4235
DOI: 10.1002/cphc.201290046