1. 3D plasmonic crystal metamaterials for ultra-sensitive biosensing
- Author
-
Andrei V. Kabashin, Artem Danilov, Maria Manousidaki, Konstantina Terzaki, Maria Farsari, Andrey Aristov, Costas Fotakis, Institute for Electronic Structure and Laser (IESL), Foundation for Research and Technology - Hellas (FORTH), Laboratoire Lasers, Plasmas et Procédés photoniques (LP3), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)
- Subjects
Multidisciplinary ,Materials science ,business.industry ,Physics::Optics ,Metamaterial ,Biosensing Techniques ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Article ,Crystal ,Delocalized electron ,Spectral sensitivity ,0103 physical sciences ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,Physics::Atomic and Molecular Clusters ,Optoelectronics ,010306 general physics ,0210 nano-technology ,business ,Biosensor ,Refractive index ,Plasmon ,Localized surface plasmon - Abstract
We explore the excitation of plasmons in 3D plasmon crystal metamaterials and report the observation of a delocalized plasmon mode, which provides extremely high spectral sensitivity (>2600 nm per refractive index unit (RIU) change), outperforming all plasmonic counterparts excited in 2D nanoscale geometries, as well as a prominent phase-sensitive response (>3*104 deg. of phase per RIU). Combined with a large surface for bioimmobilization provided by the 3D matrix, the proposed sensor architecture promises a new important landmark in the advancement of plasmonic biosensing technology.
- Published
- 2016
- Full Text
- View/download PDF