{
  "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": "uv-edge-lambda20",
    "variant": "sln"
  },
  "recommended": [
    {
      "category": "optical",
      "conditions": {
        "temperature_C": 22
      },
      "default": true,
      "id": "uv-edge-lambda20/sln/volk2008-kovacs1997",
      "kind": "scalar",
      "name": "UV absorption edge at alpha = 20 cm^-1",
      "property": "uv-edge-lambda20",
      "provenance": {
        "derivation": "lambda_20 formula at x = 1.62 (50.0 mol%); 317.2 nm at 49.0 mol%",
        "locator": "Eq. (6.5), p. 142",
        "source_id": "volk2008",
        "status": "C",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "lambda_20",
      "unit": {
        "display": "nm",
        "ucum": "nm"
      },
      "value": 303.0,
      "variant": "sln",
      "variant_note": "50.0 mol% Li2O"
    }
  ],
  "recommended_note": null,
  "spread": null
}