CoChat
Sign Up
Cited by 59Plasmonic and Surface Plasmon ResearchGold and Silver Nanoparticles Synthesis and ApplicationsNear-Field Optical Microscopy

Multispectral Cesaro-Type Fractal Plasmonic Nanoantennas

Aslan, Ekin, Aslan, Erdem, Wang, Ren, Hong, Mi K., Erramilli, Shyamsunder, Turkmen, Mustafa, Saracoglu, Omer G., Dal Negro, Luca·2016·ACS Photonics
DOI 10.1021/acsphotonics.6b00540
Open this paper in CoChat — free account

Abstract

Fractal-shaped nanoantennas have a large potential to enable multiband devices for surface-enhanced spectroscopy due to their scale-invariant geometry that gives rise to strongly enhanced local fields across different spectral ranges with multiscale spatial distributions. In particular, fractal nanoantennas based on plasmonic metals are promising for biodetection applications that extend from the near-infrared across the mid-infrared spectrum. In this context, we introduce novel multiscale resonant structures based on the inverse Cesaro space-filling fractal curve with the remarkable property that the number of resonant bands does not depend on the overall size of the structures. We systematically study their scattering and near-field resonant properties by resorting to full-field finite difference time domain simulations in combination with experimental Fourier transform infrared microspectroscopy. In particular, by investigating a number of gold antennas fabricated by electron-beam lithography on CaF 2 substrates, we demonstrate controllable multiband plasmonic resonances from near-infrared to the mid-infrared spectral regions. Moreover, our findings demonstrate that large values of near-field enhancement with hierarchical fractal distributions can be achieved in Cesaro-type nanoantennas across multiple bands that are ideally suited for chemical detection on a small footprint area. In order to demonstrate the full potential of Cesaro fractal nanoantennas for infrared sensing spectroscopy, we show triple band reliable detection of thin poly(methyl methacrylate) layers with nanoscale thickness. The engineering of Cesaro-type plasmonic nanoantennas provides a novel strategy for the realization of active devices with a large spectral density and reduced footprints that can be conveniently integrated in future plasmonic–photonic active platforms for energy harvesting and optical biosensing.

Integrity signals

Registry

Crossref · 10.1021/acsphotonics.6b00540

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In PNA-based SEIRAS, the great challenge is the limited bandwidth of nanoantenna resonances compared with the ultra-broadband vibrational absorption fingerprints.

    “In PNA-based surface-enhanced IR absorption spectroscopy (SEIRAS), the great challenge is the limited bandwidth of nanoantenna resonances compared with the ultra-broadband vibrational absorption fingerprints.”

    From Wavelength-multiplexed hook nanoantennas for machine learning enabled mid-infrared spectroscopy (2022) · cites this paper as [55]

  • Previous works show many solutions using multiple resonances of nanoantenna structures to capture plasmonic enhanced molecular fingerprints in separate wavelength ranges for sensing different molecule species.

    “Previous works show many solutions using multiple resonances of nanoantenna structures to capture the plasmonic enhanced molecular fingerprints in separate wavelength ranges for sensing different molecule species22,39,41,50,54–56.”

    From Wavelength-multiplexed hook nanoantennas for machine learning enabled mid-infrared spectroscopy (2022) · cites this paper as [55]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Authors
Aslan, E., Aslan, E., Wang, R., Hong, M. K., Erramilli, S., Turkmen, M., Saracoglu, O. G., & Dal Negro, L.
Affiliations
  • Boston University (US)
  • Department of Electrical and Electronics Engineering, Erciyes University, 38039, Kayseri, Turkey
  • Department of Electrical and Computer Engineering & Photonics Center, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215-2421, United States
ORCID
Venue
ACS Photonics
Publisher
American Chemical Society (ACS)
Published
2016-11-07
Volume
3
Issue
11
Pages
2102-2111
ISSN
2330-4022 (ISSN-L)
DOI
10.1021/acsphotonics.6b00540
OpenAlex
W2534036966
Cited by
59
References
55
Citations by year
2026: 4 · 2025: 4 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 6 · 2020: 11 · 2019: 7 · 2018: 6 · 2017: 4 · 2016: 1
FWCI
2.89
Type
journal article
Language
en
Open access
closed
Locations
ACS Photonics (publishedVersion)
Funders
  • National Science Foundation (ECCS 1541678)
  • U.S. Department of Defense (W911NF-12-2-0023)
  • Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (113-E-277, 2214-A)
  • Erciyes University, Scientific Research Center (FDK-2015-5649)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Gold and Silver Nanoparticles Synthesis and Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Near-Field Optical Microscopy
Keywords
plasmonic nanoantennas, near-field enhancement, gold nanoantennas, infrared detection, mid-infrared, near-infrared, CaF2 substrate, electron beam lithography, surface-enhanced spectroscopy, optical biosensing

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review