For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
7
views
88
references
 Top references
cited by
26
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      393
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Recent advances in plasmonic nanocavities for single-molecule spectroscopy

      review-article
      Author(s): , , , , ,
      Publication date (Electronic, pub):
      Publication date (Electronic, collection):
      Journal: Nanoscale Advances
      Publisher: RSC

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          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.

          Abstract

          This mini-review reports the most recent results on plasmonic nanocavities applied to enhanced single-molecule detection and spectroscopy.

          Related collections

          Most cited references88

          • Record: found
          • Abstract: found
          • Article: not found

          Present and Future of Surface-Enhanced Raman Scattering

          Judith Langer, Dorleta Jimenez de Aberasturi, Javier Aizpurua … (2019)
          The discovery of the enhancement of Raman scattering by molecules adsorbed on nanostructured metal surfaces is a landmark in the history of spectroscopic and analytical techniques. Significant experimental and theoretical effort has been directed toward understanding the surface-enhanced Raman scattering (SERS) effect and demonstrating its potential in various types of ultrasensitive sensing applications in a wide variety of fields. In the 45 years since its discovery, SERS has blossomed into a rich area of research and technology, but additional efforts are still needed before it can be routinely used analytically and in commercial products. In this Review, prominent authors from around the world joined together to summarize the state of the art in understanding and using SERS and to predict what can be expected in the near future in terms of research, applications, and technological development. This Review is dedicated to SERS pioneer and our coauthor, the late Prof. Richard Van Duyne, whom we lost during the preparation of this article.
          Article 0 comments Cited 680 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Single-molecule strong coupling at room temperature in plasmonic nanocavities

            Rohit Chikkaraddy, Bart de Nijs, Felix Benz … (2016)
            Emitters placed in an optical cavity experience an environment that changes their coupling to light. In the weak-coupling regime light extraction is enhanced, but more profound effects emerge in the single-molecule strong-coupling regime where mixed light-matter states form1,2. Individual two-level emitters in such cavities become non-linear for single photons, forming key building blocks for quantum information systems as well as ultra-low power switches and lasers3–6. Such cavity quantum electrodynamics has until now been the preserve of low temperatures and complex fabrication, severely compromising their use5,7,8. Here, by scaling the cavity volume below 40 nm3 and using host-guest chemistry to align 1-10 protectively-isolated methylene-blue molecules, we reach the strong-coupling regime at room temperature and in ambient conditions. Dispersion curves from >50 plasmonic nanocavities display characteristic anticrossings, with Rabi frequencies of 300 meV for 10 molecules decreasing to 90 meV for single molecules, matching quantitative models. Statistical analysis of vibrational spectroscopy time-series and dark-field scattering spectra provide evidence of single-molecule strong coupling. This dressing of molecules with light can modify photochemistry, opening up the exploration of complex natural processes such as photosynthesis9 and pathways towards manipulation of chemical bonds10.
            Article 0 comments Cited 584 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Chemical mapping of a single molecule by plasmon-enhanced Raman scattering.

              R. Zhang, Y. Zhang, Z. C. Dong … (2013)
              Visualizing individual molecules with chemical recognition is a longstanding target in catalysis, molecular nanotechnology and biotechnology. Molecular vibrations provide a valuable 'fingerprint' for such identification. Vibrational spectroscopy based on tip-enhanced Raman scattering allows us to access the spectral signals of molecular species very efficiently via the strong localized plasmonic fields produced at the tip apex. However, the best spatial resolution of the tip-enhanced Raman scattering imaging is still limited to 3-15 nanometres, which is not adequate for resolving a single molecule chemically. Here we demonstrate Raman spectral imaging with spatial resolution below one nanometre, resolving the inner structure and surface configuration of a single molecule. This is achieved by spectrally matching the resonance of the nanocavity plasmon to the molecular vibronic transitions, particularly the downward transition responsible for the emission of Raman photons. This matching is made possible by the extremely precise tuning capability provided by scanning tunnelling microscopy. Experimental evidence suggests that the highly confined and broadband nature of the nanocavity plasmon field in the tunnelling gap is essential for ultrahigh-resolution imaging through the generation of an efficient double-resonance enhancement for both Raman excitation and Raman emission. Our technique not only allows for chemical imaging at the single-molecule level, but also offers a new way to study the optical processes and photochemistry of a single molecule.
              Article 0 comments Cited 422 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): Nanoscale Adv
                Journal ID (iso-abbrev): Nanoscale Adv
                Journal ID (publisher-id): NA
                Journal ID (coden): NAADAI
                Title: Nanoscale Advances
                Publisher: RSC
                ISSN (Electronic): 2516-0230
                Publication date (Electronic, pub): 5 November 2020
                Publication date (Electronic, collection): 10 February 2021
                Publication date PMC-release: 5 November 2020
                Volume: 3
                Issue: 3
                Pages: 633-642
                Affiliations
                [a] Department of Physics and Materials Science, University of Luxembourg 162a avenue de la Faïencerie L-1511 Luxembourg Luxembourg
                [b] EPF-Ecole d'Ingénieurs 3 bis rue Lakanal 92330 Sceaux France
                [c] Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
                [d] State Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, Peking University Beijing 100871 China guillermo.acuna@ 123456unifr.ch
                [e] Département de Physique - Photonic Nanosystems, Université de Fribourg CH-1700 Fribourg Switzerland
                [f] Faculty of Science and Technology, Free University of Bozen-Bolzano Piazza università 1 39100 Bolzano Italy denis.garoli@ 123456unibz.it
                Author information
                https://orcid.org/0000-0002-0143-1510
                https://orcid.org/0000-0001-7057-2184
                https://orcid.org/0000-0001-9967-6358
                https://orcid.org/0000-0003-0646-6971
                https://orcid.org/0000-0001-8066-2677
                https://orcid.org/0000-0002-5418-7494
                Article
                Publisher ID: d0na00715c
                DOI: 10.1039/d0na00715c
                PMC ID: 9418431
                PubMed ID: 36133836
                SO-VID: 5b0d6941-1fb4-47e0-9e65-37d9c4f15551
                Copyright © This journal is © The Royal Society of Chemistry
                History
                Date received : 26 August 2020
                Date accepted : 4 November 2020
                Page count
                Pages: 10
                Funding
                Funded by: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, doi 10.13039/501100001711;
                Award ID: 200021_184687
                Funded by: Fonds National de la Recherche Luxembourg, doi 10.13039/501100001866;
                Award ID: C19/MS/13624497
                Categories
                Subject: Chemistry
                Custom metadata
                pubstatus Paginated Article

                Data availability:

                Comments

                Comment on this article

                scite_

                Similar content393

                See all similar

                Cited by26

                See all cited by