Numerical Study of Novel Ratiometric Sensors Based on Plasmon–Exciton Coupling
Language
en
Article de revue
This item was published in
Applied Spectroscopy. 2017, vol. 71, n° 10, p. 2377-2384
Society for Applied Spectroscopy
English Abstract
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 ...Read more >
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.Read less <
English Keywords
Surface plasmon resonance
nanoparticles
biosensor
strong coupling
ANR Project
Méthodes de peignage moléculaire à haut débit pour une cartographie rapide de la réplication du génome humain
Origin
Hal imported