A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging

L. Neumann, Jan Joannes Frederik van 't Oever, N.F. van Hulst

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)

Abstract

We present a scanning antenna probe that provides 35 nm optical hotspots with a 16-fold excitation enhancement. A resonant optical antenna, tuned to operation in the visible, is carved into the aluminum-coated scanning probe. The antenna resonances, field localization, excitation, and polarization response are probed in the near-field by scanning over single fluorescent nanobeads. At the same time, the distance-dependent coupling of the emission to the antenna mode is mapped. Good agreement with theory is obtained. The presented scanning antenna approach is useful for both nanoscale plasmonic mode imaging and (bio)imaging
Original languageEnglish
Pages (from-to)5070-5074
Number of pages4
JournalNano letters
Volume13
Issue number11
DOIs
Publication statusPublished - 2013

Fingerprint

Scanning antennas
dipole antennas
Dipole antennas
antennas
Antennas
Imaging techniques
scanning
probes
Scanning
Aluminum
Polarization
excitation
near fields
aluminum
augmentation
polarization

Keywords

  • IR-88592
  • METIS-300629

Cite this

Neumann, L., van 't Oever, J. J. F., & van Hulst, N. F. (2013). A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging. Nano letters, 13(11), 5070-5074. https://doi.org/10.1021/nl402178b
Neumann, L. ; van 't Oever, Jan Joannes Frederik ; van Hulst, N.F. / A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging. In: Nano letters. 2013 ; Vol. 13, No. 11. pp. 5070-5074.
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Neumann, L, van 't Oever, JJF & van Hulst, NF 2013, 'A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging' Nano letters, vol. 13, no. 11, pp. 5070-5074. https://doi.org/10.1021/nl402178b

A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging. / Neumann, L.; van 't Oever, Jan Joannes Frederik; van Hulst, N.F.

In: Nano letters, Vol. 13, No. 11, 2013, p. 5070-5074.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - A Resonant Scanning Dipole-Antenna Probe for Enhanced Nanoscale Imaging

AU - Neumann, L.

AU - van 't Oever, Jan Joannes Frederik

AU - van Hulst, N.F.

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KW - IR-88592

KW - METIS-300629

U2 - 10.1021/nl402178b

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SP - 5070

EP - 5074

JO - Nano letters

JF - Nano letters

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