{
  "alternatives": [],
  "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": "refractive-index-e",
    "variant": "lt-unspecified"
  },
  "recommended": [
    {
      "category": "optical",
      "conditions": {
        "temperature_text": "room temperature",
        "wavelength_nm": 1000
      },
      "default": true,
      "id": "refractive-index-e/lt-unspecified/bond1965-1000nm",
      "kind": "scalar",
      "name": "Extraordinary refractive index",
      "notes": "n_e > n_o at every tabulated wavelength (0.45-4.0 um) in this dataset: LT is weakly positive uniaxial here, unlike LN.",
      "property": "refractive-index-e",
      "provenance": {
        "locator": "refractiveindex.info LiTaO3/Bond-e tabulated data",
        "source_id": "bond1965",
        "status": "P-db",
        "transcribed": "2026-10-25",
        "via": "rii"
      },
      "public": true,
      "symbol": "n_e",
      "unit": {
        "display": "-",
        "qudt": "http://qudt.org/vocab/unit/UNITLESS",
        "ucum": "1"
      },
      "value": 2.1432,
      "variant": "lt-unspecified",
      "variant_note": "1965 bulk crystal"
    },
    {
      "category": "optical",
      "conditions": {
        "temperature_text": "room temperature",
        "wavelength_nm": 1600
      },
      "default": true,
      "id": "refractive-index-e/lt-unspecified/bond1965-1600nm",
      "kind": "scalar",
      "name": "Extraordinary refractive index",
      "notes": "n_e > n_o at every tabulated wavelength (0.45-4.0 um) in this dataset: LT is weakly positive uniaxial here, unlike LN.",
      "property": "refractive-index-e",
      "provenance": {
        "locator": "refractiveindex.info LiTaO3/Bond-e tabulated data",
        "source_id": "bond1965",
        "status": "P-db",
        "transcribed": "2026-10-25",
        "via": "rii"
      },
      "public": true,
      "symbol": "n_e",
      "unit": {
        "display": "-",
        "qudt": "http://qudt.org/vocab/unit/UNITLESS",
        "ucum": "1"
      },
      "value": 2.1213,
      "variant": "lt-unspecified",
      "variant_note": "1965 bulk crystal"
    },
    {
      "category": "optical",
      "conditions": {
        "temperature_text": "room temperature",
        "wavelength_nm": 600
      },
      "default": true,
      "id": "refractive-index-e/lt-unspecified/bond1965-600nm",
      "kind": "scalar",
      "name": "Extraordinary refractive index",
      "notes": "n_e > n_o at every tabulated wavelength (0.45-4.0 um) in this dataset: LT is weakly positive uniaxial here, unlike LN.",
      "property": "refractive-index-e",
      "provenance": {
        "locator": "refractiveindex.info LiTaO3/Bond-e tabulated data",
        "source_id": "bond1965",
        "status": "P-db",
        "transcribed": "2026-10-25",
        "via": "rii"
      },
      "public": true,
      "symbol": "n_e",
      "unit": {
        "display": "-",
        "qudt": "http://qudt.org/vocab/unit/UNITLESS",
        "ucum": "1"
      },
      "value": 2.1878,
      "variant": "lt-unspecified",
      "variant_note": "1965 bulk crystal"
    }
  ],
  "recommended_note": null,
  "spread": {
    "max": 2.1878,
    "min": 2.1213,
    "n_records": 3,
    "note": "Range over all public records regardless of conditions; compare conditions before use.",
    "unit": "1"
  }
}