Spatial resolution versus contrast trade-off enhancement in high-resolution surface plasmon resonance imaging (SPRI) by metal surface nanostructure design
| Autor: | Paul G. Charette, Michael Canva, Mondher Besbes, Frederic A. Banville, Mitradeep Sarkar, Julien Moreau |
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| Přispěvatelé: | Laboratoire Charles Fabry / Biophotonique, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire Nanotechnologies et Nanosystèmes [Sherbrooke] (LN2), Université de Sherbrooke (UdeS)-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
(000.4430) Numerical approximation and analysis
Nanostructure Materials science Physics::Optics 02 engineering and technology Surface plasmons 010402 general chemistry 01 natural sciences Optics nanostructures Imaging systems Image resolution (310.6628) Subwavelength structures (180.4243) Near-field microscopy Total internal reflection [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Resolution (electron density) Surface plasmon (110.0110) Imaging systems Surface-enhanced Raman spectroscopy 021001 nanoscience & nanotechnology Surface plasmon polariton Atomic and Molecular Physics and Optics 0104 chemical sciences Near-field scanning optical microscope 0210 nano-technology business OCIS codes: (240.6680) Surface plasmons Near-field microscopy |
| Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2018, 26 (8), pp.10616. ⟨10.1364/OE.26.010616⟩ |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/OE.26.010616⟩ |
| Popis: | International audience; Surface plasmon resonance imaging (SPRI) is an optical near-field method used for mapping the spatial distribution of chemical/physical perturbations above a metal surface without exogenous labeling. Currently, the majority of SPRI systems are used in microarray biosensing, requiring only modest spatial resolution. There is increasing interest in applying SPRI for label-free near-field imaging of biological cells to study cell/surface interactions. However, the required resolution (sub-μm) greatly exceeds what current systems can deliver. Indeed, the attenuation length of surface plasmon polaritons (SPP) severely limits resolution along one axis, typically to tens of μm. Strategies to date for improving spatial resolution result in a commensurate deterioration in other imaging parameters. Unlike the smooth metal surfaces used in SPRI that support purely propagating surface modes, nanostructured metal surfaces support “hybrid” SPP modes that share attributes from both propagating and localized modes. We show that these hybrid modes are especially well-suited to highresolution imaging and demonstrate how the nanostructure geometry can be designed to achieve sub-μm resolution while mitigating the imaging parameter trade-off according to an application-specific optimum. |
| Databáze: | OpenAIRE |
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