TANG, Yuankai; YU, Xiantong; PAN, Haifeng; CHEN, Jinquan; AUDIT, Benjamin; ARGOUL, Françoise; ZHANG, Sanjun; XU, Jianhua

doi:10.1177/0003702817706979

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TANG, Yuankai
State Key Laboratory of Precision Spectroscopy

YU, Xiantong
State Key Laboratory of Precision Spectroscopy

PAN, Haifeng
State Key Laboratory of Precision Spectroscopy

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Applied Spectroscopy. 2017, vol. 71, n° 10, p. 2377-2384

Society for Applied Spectroscopy

Resumen en inglés

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.< Leer menos

Palabras clave en inglés

Surface plasmon resonance

nanoparticles

biosensor

strong coupling

DOI

http://dx.doi.org/10.1177/0003702817706979

Proyecto ANR

Méthodes de peignage moléculaire à haut débit pour une cartographie rapide de la réplication du génome humain

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798