Numerical Study of Novel Ratiometric Sensors Based on Plasmon–Exciton Coupling
Langue
en
Article de revue
Ce document a été publié dans
Applied Spectroscopy. 2017, vol. 71, n° 10, p. 2377-2384
Society for Applied Spectroscopy
Résumé en anglais
We numerically studied the optical properties of spherical nanostructures made of an emitter core coated by a silver shell through the generalized Mie theory. When there is a strong coupling between the localized surface ...Lire la suite >
We numerically studied the optical properties of spherical nanostructures made of an emitter core coated by a silver shell through the generalized Mie theory. When there is a strong coupling between the localized surface plasmon in the metallic shell and the emitter exciton in the core, the extinction spectra exhibit two peaks. Upon adsorption of analytes on these core-shell nanostructures, the intensities of the two peaks change with opposite trends. This property makes them potential sensitive ratiometric sensors. Molecule adsorption on these nanostructures can be quantified through a very simple optical configuration likely resulting in a much faster acquisition time compared with systems based on the traditional metal nanoparticle surface plasmon resonance (SPR) biosensors.< Réduire
Mots clés en anglais
Surface plasmon resonance
nanoparticles
biosensor
strong coupling
Project ANR
Méthodes de peignage moléculaire à haut débit pour une cartographie rapide de la réplication du génome humain
Origine
Importé de halUnités de recherche