{
  "alternatives": [
    {
      "category": "optical",
      "conditions": {
        "method": "parametric fluorescence, 488 nm pump"
      },
      "id": "nlo-d31/cln/kitamoto1995-488nm",
      "kind": "scalar",
      "name": "Second-order nonlinear coefficient d31",
      "notes": "Abstract judges an earlier 5.8 pm/V overestimated.",
      "property": "nlo-d31",
      "provenance": {
        "locator": "abstract",
        "source_id": "kitamoto1995",
        "status": "P(abs)",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "d31",
      "tensor_component": "d31",
      "uncertainty": {
        "type": "stated",
        "value": 0.5
      },
      "unit": {
        "display": "pm/V",
        "ucum": "pm/V"
      },
      "value": 4.8,
      "variant": "cln"
    },
    {
      "category": "optical",
      "conditions": {
        "method": "parametric fluorescence, 532 nm pump"
      },
      "id": "nlo-d31/cln/kitamoto1995-532nm",
      "kind": "scalar",
      "name": "Second-order nonlinear coefficient d31",
      "property": "nlo-d31",
      "provenance": {
        "locator": "abstract",
        "source_id": "kitamoto1995",
        "status": "P(abs)",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "d31",
      "tensor_component": "d31",
      "uncertainty": {
        "type": "stated",
        "value": 0.5
      },
      "unit": {
        "display": "pm/V",
        "ucum": "pm/V"
      },
      "value": 4.3,
      "variant": "cln"
    }
  ],
  "meta": {
    "api_version": "v1",
    "attribution": "lithium-niobate.com data compiled by Wentao Jiang; cite the original sources listed per value.",
    "data_version": "0.1.0",
    "documentation": "https://lithium-niobate.com/api/openapi.json",
    "license": {
      "id": "CC-BY-4.0",
      "name": "Creative Commons Attribution 4.0 International",
      "url": "https://creativecommons.org/licenses/by/4.0/"
    },
    "property": "nlo-d31",
    "variant": "cln"
  },
  "recommended": [],
  "recommended_note": "No single recommended record: sources disagree or none is primary; see alternatives and spread.",
  "spread": {
    "max": 4.8,
    "min": 4.3,
    "n_records": 2,
    "note": "Range over all public records regardless of conditions; compare conditions before use.",
    "unit": "pm/V"
  }
}