Recent advances in plasmonic nanocavities for single-molecule spectroscopy. Issue 3 (20th November 2020)

• Record Type: Journal Article
• Authors: Maccaferri, Nicolò; Barbillon, Grégory; Koya, Alemayehu Nana; Lu, Guowei; Acuna, Guillermo P.; Garoli, Denis
• Is Part Of: Nanoscale advances. Volume 3:Issue 3(2021)
• Page Start: 633
• Page End: 642
• Publication Date: 2020-11-20
• Subjects: 620.5
• DOI: 10.1039/d0na00715c
• Languages: English
• ISSNs: 2516-0230

Abstract

Abstract : This mini-review reports the most recent results on plasmonic nanocavities applied to enhanced single-molecule detection and spectroscopy. Abstract : Plasmonic nanocavities are able to engineer and confine electromagnetic fields to subwavelength volumes. In the past decade, they have enabled a large set of applications, in particular for sensing, optical trapping, and the investigation of physical and chemical phenomena at a few or single-molecule levels. This extreme sensitivity is possible thanks to the highly confined local field intensity enhancement, which depends on the geometry of plasmonic nanocavities. Indeed, suitably designed structures providing engineered local optical fields lead to enhanced optical sensing based on different phenomena such as surface enhanced Raman scattering, fluorescence, and Förster resonance energy transfer. In this mini-review, we illustrate the most recent results on plasmonic nanocavities, with specific emphasis on the detection of single molecules.