Thick multilayered (silica/gold) dipole nano-antenna.

Applied optics · 2015 · Benefit · Insufficient evidence

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BenefitInsufficient evidencePaper 2983

Composite dipole nano-antennas made of alternating silica and gold layers showed higher electric-field enhancement than a pure-gold antenna; a 50% filling factor produced a 2.0× increase in the electric-field enhancement factor compared with pure gold.

Study snapshot

PublicationApplied optics · 2015

Study typeengineering

Reported directionBenefit

Evidence ratingInsufficient

Abstract

Nano-antennas are the optical equivalent of antennas that are used to transmit and receive information at radio frequencies. These antennas have been used in different applications in photonics such as optical imaging, particle manipulation, bio-sensing, and improvement of the performance of solar cells. In this article we study composite nano-antennas made of alternating layers of silica and gold. We show that a 50% filling factor leads to a 2.0 times increase in the electric-field enhancement factor when compared with a pure-gold antenna.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering

Effect directionbenefit

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

electric-field enhancement factor (nano-antenna performance)

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "electric-field enhancement factor (nano-antenna performance)"
  ],
  "main_findings": "Composite dipole nano-antennas made of alternating silica and gold layers showed higher electric-field enhancement than a pure-gold antenna; a 50% filling factor produced a 2.0× increase in the electric-field enhancement factor compared with pure gold.",
  "effect_direction": "benefit",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "nano-antenna",
    "dipole nano-antenna",
    "silica",
    "gold",
    "multilayer",
    "filling factor",
    "electric-field enhancement",
    "photonics"
  ],
  "suggested_hubs": [
    {
      "slug": "engineering",
      "weight": 0.9,
      "reason": "Study focuses on design/performance of optical nano-antennas rather than biological or epidemiological EMF effects."
    }
  ]
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1364/ao.54.010063
PubMed: 26836661

Read the original paper →