Visualizing electromagnetic fields at the nanoscale by single molecule localization

Christian Steuwe, Miklos Erdelyi, G. Szekeres, M. Csete, Jeremy J. Baumberg, Sumeet Mahajan, Clemens F. Kaminski

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Coupling of light to the free electrons at metallic surfaces allows the confinement of electric fields to subwavelength dimensions, far below the optical diffraction limit. While this is routinely used to manipulate light at the nanoscale,1 in electro-optic devices2 and enhanced spectroscopic techniques,3-6 no characterization technique for imaging the underlying nanoscopic electromagnetic fields exists, which does not perturb the field4,7 or employ complex electron beam imaging.8,9 Here, we demonstrate the direct visualization of electromagnetic fields on patterned metallic substrates at nanometer resolution, exploiting a strong "autonomous" fluorescence-blinking behavior of single molecules within the confined fields allowing their localization. Use of DNA-constructs for precise positioning of fluorescence dyes on the surface induces this distance-dependent autonomous blinking thus completely obviating the need for exogenous agents or switching methods. Mapping such electromagnetic field distributions at nanometer resolution aids the rational design of nanometals for diverse photonic applications.

Original languageEnglish
Pages (from-to)3217-3223
Number of pages7
JournalNano Letters
Volume15
Issue number5
DOIs
Publication statusPublished - May 13 2015

Fingerprint

Electromagnetic fields
blinking
electromagnetic fields
Molecules
Fluorescence
molecules
fluorescence
Electrooptical effects
Photonics
free electrons
electro-optics
positioning
Electron beams
DNA
Coloring Agents
Visualization
Dyes
deoxyribonucleic acid
Diffraction
dyes

Keywords

  • nanostructures
  • plasmons
  • single molecule localization
  • Super-resolution
  • surface-enhanced

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Steuwe, C., Erdelyi, M., Szekeres, G., Csete, M., Baumberg, J. J., Mahajan, S., & Kaminski, C. F. (2015). Visualizing electromagnetic fields at the nanoscale by single molecule localization. Nano Letters, 15(5), 3217-3223. https://doi.org/10.1021/acs.nanolett.5b00405

Visualizing electromagnetic fields at the nanoscale by single molecule localization. / Steuwe, Christian; Erdelyi, Miklos; Szekeres, G.; Csete, M.; Baumberg, Jeremy J.; Mahajan, Sumeet; Kaminski, Clemens F.

In: Nano Letters, Vol. 15, No. 5, 13.05.2015, p. 3217-3223.

Research output: Contribution to journalArticle

Steuwe, C, Erdelyi, M, Szekeres, G, Csete, M, Baumberg, JJ, Mahajan, S & Kaminski, CF 2015, 'Visualizing electromagnetic fields at the nanoscale by single molecule localization', Nano Letters, vol. 15, no. 5, pp. 3217-3223. https://doi.org/10.1021/acs.nanolett.5b00405
Steuwe, Christian ; Erdelyi, Miklos ; Szekeres, G. ; Csete, M. ; Baumberg, Jeremy J. ; Mahajan, Sumeet ; Kaminski, Clemens F. / Visualizing electromagnetic fields at the nanoscale by single molecule localization. In: Nano Letters. 2015 ; Vol. 15, No. 5. pp. 3217-3223.
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