[Effect of electric field on optical radiation linewidth of free-carriers in quantum wells].

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Optical radiation linewidth",
    "Photoluminescence linewidth",
    "Energy level broadening (free carriers in quantum wells)"
  ],
  "main_findings": "A quantum-mechanical formula for particle energy uncertainty is derived and indicates that an electric field strongly scatters carriers and substantially broadens energy levels. When applied to GaAs/GaAlAs P-I-N quantum wells, calculated optical radiation linewidths agreed with measured photoluminescence linewidths.",
  "effect_direction": "unclear",
  "limitations": [
    "No exposure metrics (field strength, frequency) are provided in the abstract.",
    "Not a biological/health study; focuses on semiconductor carrier scattering and optical linewidths.",
    "Sample size and measurement details are not reported in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electric field",
    "free carriers",
    "quantum wells",
    "GaAs/GaAlAs",
    "P-I-N structure",
    "energy uncertainty",
    "scattering",
    "energy level broadening",
    "optical radiation linewidth",
    "photoluminescence"
  ],
  "suggested_hubs": []
}