Internal and near-surface electromagnetic fields for an absorbing spheroidal particle with arbitrary illumination.

Applied optics · 1995 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 4276

Study snapshot

PublicationApplied optics · 1995

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

A previously developed [Appl. Opt. 34, 5542 (1995)] theoretical procedure for the calculation of the internal and the near-surface electromagnetic fields for nonabsorbing spheroidal particles with arbitrary monochromatic illumination has been generalized to permit solutions for absorbing (i.e., complex relative index of refraction) spheroidal particles. Calculations are presented that demonstrate the general effects of absorption on the internal and near-surface electromagnetic-field distributions for the particular case of a plane wave that is incident upon a 2:1-axis-ratio oblate spheroidal particle.

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AI evidence extraction

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Study typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

A theoretical procedure previously developed for nonabsorbing spheroidal particles under arbitrary monochromatic illumination was generalized to allow solutions for absorbing spheroidal particles (complex relative refractive index). Example calculations for a plane wave incident on a 2:1-axis-ratio oblate spheroidal particle demonstrate general effects of absorption on internal and near-surface field distributions.

Outcomes measured

Internal electromagnetic-field distributions
Near-surface electromagnetic-field distributions

Limitations

The abstract describes a theoretical/methods paper with example calculations; no biological or health outcomes are reported.
Illumination and particle geometry are illustrated for a specific case (plane wave; 2:1 oblate spheroid), which may limit generality beyond the demonstrated scenario.

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": [
    "Internal electromagnetic-field distributions",
    "Near-surface electromagnetic-field distributions"
  ],
  "main_findings": "A theoretical procedure previously developed for nonabsorbing spheroidal particles under arbitrary monochromatic illumination was generalized to allow solutions for absorbing spheroidal particles (complex relative refractive index). Example calculations for a plane wave incident on a 2:1-axis-ratio oblate spheroidal particle demonstrate general effects of absorption on internal and near-surface field distributions.",
  "effect_direction": "unclear",
  "limitations": [
    "The abstract describes a theoretical/methods paper with example calculations; no biological or health outcomes are reported.",
    "Illumination and particle geometry are illustrated for a specific case (plane wave; 2:1 oblate spheroid), which may limit generality beyond the demonstrated scenario."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic fields",
    "near-surface fields",
    "internal fields",
    "spheroidal particle",
    "absorption",
    "complex refractive index",
    "monochromatic illumination",
    "plane wave",
    "theoretical procedure"
  ],
  "suggested_hubs": []
}

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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.34.008472
PubMed: 21068967

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