{ "info": { "description": "Static GET-only API. All parameters are path segments; query strings are ignored by the host.", "license": { "identifier": "CC-BY-4.0", "name": "CC BY 4.0 (data)" }, "title": "lithium-niobate.com data API", "version": "0.1.0" }, "jsonSchemaDialect": "https://json-schema.org/draft/2020-12/schema", "openapi": "3.1.0", "paths": { "/api/v1/datapackage.json": { "get": { "responses": { "200": { "content": { "application/json": {} }, "description": "Frictionless Data Package v2 descriptor" } }, "summary": "Frictionless Data Package v2 descriptor" } }, "/api/v1/dispersion.json": { "get": { "responses": { "200": { "content": { "application/json": {} }, "description": "Dispersion model list" } }, "summary": "Dispersion model list" } }, "/api/v1/dispersion/{model_id}.json": { "get": { "parameters": [ { "description": "Model id", "in": "path", "name": "model_id", "required": true, "schema": { "enum": [ "gayer2008-mgo1-sln-e", "gayer2008-mgo5-e", "gayer2008-mgo5-o", "zelmon1997-cln-e", "zelmon1997-cln-o", "zelmon1997-mgo5-e", "zelmon1997-mgo5-o" ], "type": "string" } } ], "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "model": { "$ref": "https://lithium-niobate.com/api/v1/schema/dispersion.schema.json" } }, "type": "object" } } }, "description": "Dispersion model: formula, coefficients, validity, errata, check values" } }, "summary": "Dispersion model: formula, coefficients, validity, errata, check values" } }, "/api/v1/dispersion/{model_id}.rii.yml": { "get": { "parameters": [ { "description": "Model id", "in": "path", "name": "model_id", "required": true, "schema": { "enum": [ "gayer2008-mgo1-sln-e", "gayer2008-mgo5-e", "gayer2008-mgo5-o", "zelmon1997-cln-e", "zelmon1997-cln-o", "zelmon1997-mgo5-e", "zelmon1997-mgo5-o" ], "type": "string" } } ], "responses": { "200": { "content": { "application/yaml": {} }, "description": "refractiveindex.info-compatible YAML export" } }, "summary": "refractiveindex.info-compatible YAML export" } }, "/api/v1/events/history.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "events": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/event.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "History events (status V/P/S)" } }, "summary": "History events (status V/P/S)" } }, "/api/v1/events/industry.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "events": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/event.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "Industry events with evidence grades" } }, "summary": "Industry events with evidence grades" } }, "/api/v1/glossary.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "terms": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/glossary.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "Glossary terms" } }, "summary": "Glossary terms" } }, "/api/v1/grids/index/{model_id}/{temperature}.csv": { "get": { "parameters": [ { "description": "Model id", "in": "path", "name": "model_id", "required": true, "schema": { "enum": [ "gayer2008-mgo1-sln-e", "gayer2008-mgo5-e", "gayer2008-mgo5-o", "zelmon1997-cln-e", "zelmon1997-cln-o", "zelmon1997-mgo5-e", "zelmon1997-mgo5-o" ], "type": "string" } }, { "description": "Temperature tag", "in": "path", "name": "temperature", "required": true, "schema": { "enum": [ "T21C", "T24.5C" ], "type": "string" } } ], "responses": { "200": { "content": { "text/csv": {} }, "description": "n(lambda) at 1 nm steps over the validity range, at the model reference temperature (file name T{T_C}C.csv)" } }, "summary": "n(lambda) at 1 nm steps over the validity range, at the model reference temperature (file name T{T_C}C.csv)" } }, "/api/v1/index.json": { "get": { "responses": { "200": { "content": { "application/json": {} }, "description": "Catalog: properties, tensors, dispersion models, variants, counts, endpoints, license" } }, "summary": "Catalog: properties, tensors, dispersion models, variants, counts, endpoints, license" } }, "/api/v1/properties.csv": { "get": { "responses": { "200": { "content": { "text/csv": {} }, "description": "All public scalar records as CSV" } }, "summary": "All public scalar records as CSV" } }, "/api/v1/properties.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "records": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/scalar.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "All public scalar records" } }, "summary": "All public scalar records" } }, "/api/v1/properties/{property}.json": { "get": { "parameters": [ { "description": "Property id", "in": "path", "name": "property", "required": true, "schema": { "enum": [ "absorption-coefficient", "birefringence", "bulk-velocity-longitudinal-x", "bulk-velocity-longitudinal-y", "bulk-velocity-longitudinal-z", "bulk-velocity-shear-x", "bulk-velocity-shear-y", "bulk-velocity-shear-z", "coercive-field", "coercive-field-ratio-cln-sln", "congruent-composition", "curie-temperature", "curie-temperature-vs-composition", "dark-conductivity", "dark-conductivity-activation-energy", "density", "dne-dt", "dno-dt", "elastic-c14", "eo-r13-T", "eo-r22-T", "eo-r33", "eo-r33-T", "hydrostatic-piezo-dh", "internal-field", "ir-cutoff", "lattice-a", "lattice-c", "maxwell-relaxation-time", "melting-point", "mgo-photorefractive-threshold", "mohs-hardness", "nlo-d31", "nonlinear-index-n2", "oh-stretch-band", "optical-band-gap", "point-group", "pyroelectric-p3", "refractive-index-e", "refractive-index-o", "residual-absorption", "rhombohedral-a", "rhombohedral-alpha", "space-group", "space-group-paraelectric", "specific-heat", "spontaneous-polarization", "thermal-conductivity", "thermal-expansion-a", "thermal-expansion-c", "transparency-range", "uv-cutoff", "uv-edge-formula", "uv-edge-lambda20" ], "type": "string" } } ], "responses": { "200": { "content": { "application/json": {} }, "description": "All public records for one property, with schema.org Dataset JSON-LD" } }, "summary": "All public records for one property, with schema.org Dataset JSON-LD" } }, "/api/v1/properties/{property}/{variant}.json": { "get": { "parameters": [ { "description": "Property id", "in": "path", "name": "property", "required": true, "schema": { "enum": [ "absorption-coefficient", "birefringence", "bulk-velocity-longitudinal-x", "bulk-velocity-longitudinal-y", "bulk-velocity-longitudinal-z", "bulk-velocity-shear-x", "bulk-velocity-shear-y", "bulk-velocity-shear-z", "coercive-field", "coercive-field-ratio-cln-sln", "congruent-composition", "curie-temperature", "curie-temperature-vs-composition", "dark-conductivity", "dark-conductivity-activation-energy", "density", "dne-dt", "dno-dt", "elastic-c14", "eo-r13-T", "eo-r22-T", "eo-r33", "eo-r33-T", "hydrostatic-piezo-dh", "internal-field", "ir-cutoff", "lattice-a", "lattice-c", "maxwell-relaxation-time", "melting-point", "mgo-photorefractive-threshold", "mohs-hardness", "nlo-d31", "nonlinear-index-n2", "oh-stretch-band", "optical-band-gap", "point-group", "pyroelectric-p3", "refractive-index-e", "refractive-index-o", "residual-absorption", "rhombohedral-a", "rhombohedral-alpha", "space-group", "space-group-paraelectric", "specific-heat", "spontaneous-polarization", "thermal-conductivity", "thermal-expansion-a", "thermal-expansion-c", "transparency-range", "uv-cutoff", "uv-edge-formula", "uv-edge-lambda20" ], "type": "string" } }, { "description": "Variant id (see variants.json); only combinations listed in index.json exist", "in": "path", "name": "variant", "required": true, "schema": { "type": "string" } } ], "responses": { "200": { "content": { "application/json": {} }, "description": "Recommended record(s), alternatives and spread for one property and variant" } }, "summary": "Recommended record(s), alternatives and spread for one property and variant" } }, "/api/v1/publications.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "publications": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/publication.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "LN-relevant publications of the author" } }, "summary": "LN-relevant publications of the author" } }, "/api/v1/records.csv": { "get": { "responses": { "200": { "content": { "text/csv": {} }, "description": "Device-performance records as CSV" } }, "summary": "Device-performance records as CSV" } }, "/api/v1/records.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "records": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/record.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "Provisional device-performance records" } }, "summary": "Provisional device-performance records" } }, "/api/v1/schema/{type}.schema.json": { "get": { "parameters": [ { "description": "Schema name", "in": "path", "name": "type", "required": true, "schema": { "enum": [ "common", "dispersion", "event", "glossary", "publication", "record", "scalar", "source", "tensor", "variant" ], "type": "string" } } ], "responses": { "200": { "content": { "application/schema+json": {} }, "description": "JSON Schema 2020-12 for a payload type" } }, "summary": "JSON Schema 2020-12 for a payload type" } }, "/api/v1/sources.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "sources": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/source.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "All sources" } }, "summary": "All sources" } }, "/api/v1/sources/{source_id}.json": { "get": { "parameters": [ { "description": "Source id", "in": "path", "name": "source_id", "required": true, "schema": { "enum": [ "abrahams1966", "abrahams1966b", "abrahams1966c", "abrahams1986", "afr-2025", "alferness1982", "amodei1971a", "amodei1972", "andrushchak2009", "arfwedson1818", "armstrong1962", "ashkin1966", "ballman1965", "bartasyte2017", "becker1988", "belinicher1980", "belllabsrecord1965", "berzelius1818", "bjnews-2020", "boes2023", "bond1965", "bordui1992", "bouchy2022", "boyd1964", "boysen1994", "brinkmann1990", "brinkmann1991", "bruel1995", "bryan1984", "bw-2023", "bw-2026-umc", "bwchina-2026", "c114-2025", "carruthers1971", "carruthers1974", "chakkoria2025", "chang2017", "chen1968", "chen1969", "cls-2025", "cod", "compoundsemi-2000", "cordis-elena", "csem-2025", "csem-2026", "cti1999", "czochralski1918", "declercq2025", "deguet2010", "desalvo1996", "desiatov2019", "eenews-2020-soitec", "einnews-2026", "ekeberg1802", "electronicsonline-2009", "eospace-mgmt", "exail-2022", "fedulov1965", "fejer1992", "feng1980", "franken1963", "fridkin1977", "fridkin1978", "fridkin1979", "fridkin1984", "fujitsu-2009", "fujitsu-2021a", "fujitsu-2021b", "fujiwara1989a", "fujiwara1989b", "furukawa2000", "furukawa2001", "gayer2008", "gbt46611", "gh-history", "gh-ln-wafers", "giordmaine1965", "glass1974", "gopalan1998", "gopalan2007", "guarino2007", "han2021", "harris1969", "hartung2008", "hatchett1802", "he2019", "he2019-h", "hirohashi2007", "holzgrafe2024", "hsu1997", "hu2009", "hu2021", "ieee176", "ifeng-2026", "imec-2026", "imlau2015", "inbar1996", "iqec1980", "ire1949", "iyi1992", "jackel1982", "jankowski2020", "jazbinsek2002", "jia2021", "jiang2017", "jiang2019", "jiang2020", "jundt1997", "kadota2011", "kaminow1966", "kaminow1973", "kaminow1980", "kashiwazaki2021", "kharel2021", "kim1969", "kitamoto1995", "kitamura1992", "kovacs1997", "kukhtarev1977", "kukhtarev1978a", "kukhtarev1978b", "kurz1974", "kushibiki1999", "kuzminov-catalog", "lallier1989", "leidinger2015", "lenzo1966", "lerner1968", "levinstein1967", "levy1998", "lfw-1995", "li2026photonics", "lightwave-1995", "lightwave-1997", "lightwave-1998", "lightwave-2003", "lightwave-2019", "lightwave-2021", "lightwave-2022", "lightwave-2024", "lim1989a", "lim1989b", "lin2020", "liobate-company", "liu2025", "lu2019", "lu2025", "luh1987", "luke2020", "luxtelligence-about", "magel1990", "malecka2013", "marignac1866", "matthias1949", "miller1964", "miller1965", "mok1993", "moretti2005", "moulet2008", "mp3731", "murata-2022", "myers1995", "myers1995a", "mys2015", "mytsyk2021", "nagata1993", "nanoln-about", "nassau1960", "nassau1965", "nassau1966a", "nassau1966b", "nassau1984", "niels2026", "nikkan-2016", "nishida2003", "nobelapi-ashkin", "note-r06", "ogi2002", "ohgaki1992", "opticsorg-2024", "opticsorg-2025", "opticsorg-2026", "opticsorg-crystaltech", "oxide-history", "parriaux2020", "peterson1964", "peterson1971", "photonicsonline-2015", "picmag-2025", "pijolat2008", "pijolat2009", "plessky2019", "pmc8617696", "poberaj2012", "rabiei2004", "rao2018", "raynercanham2008", "reisman1958", "rfb-jdsu", "rii", "rodrigues2023", "rose1844", "rose1844bericht", "rose1846", "rose1846bericht", "sal-2025", "sarabalis2020", "savage1966", "schirmer2009", "schlarb1993", "schmidt1974", "schwesyg2011", "seino1992", "shao2019", "shi2025", "shibayama1976", "shinetsu-history", "shoji1997", "sina-2024", "smith1976", "smithwelsh1971", "smm-2014", "smm-products", "smolenskii1966", "snigirev2023", "soc-history", "spencer1965", "staebler1971", "starnault2026", "sturman2021", "summit-2026", "tdg-ir-2026", "thierfelder2010", "tien1974", "tomaszewski2002", "tomaszewski2004", "tqi-2024", "turner1966", "uecker2014", "us6540827", "vanderkrogt-nb", "volk1990", "volk1992", "volk1994", "volk2008", "wang2014", "wang2018", "wang2018a", "wang2018c", "wang2019", "wang2022", "wang2024", "wang2024optica", "wang2025lt", "wang2026", "warner1967", "weeks1932", "weigel2018", "weis1985", "white1965", "whitevoltmer1965preprint", "wollaston1809", "wong2002", "wooten2000", "xfab-2026", "xu2022", "xue1983", "yamada1981", "yamada1993", "yamanouchi1972", "zachariasen1928", "zelmon1997", "zhang2017", "zhang2019", "zhang2021", "zheng2016", "zhong1983", "zhu1997", "zhu2021", "zook1967" ], "type": "string" } } ], "responses": { "200": { "content": { "application/json": {} }, "description": "One source with formatted citation" } }, "summary": "One source with formatted citation" } }, "/api/v1/tensors.csv": { "get": { "responses": { "200": { "content": { "text/csv": {} }, "description": "Independent tensor components as CSV" } }, "summary": "Independent tensor components as CSV" } }, "/api/v1/tensors.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "records": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/tensor.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "All public tensor records" } }, "summary": "All public tensor records" } }, "/api/v1/tensors/{tensor}.json": { "get": { "parameters": [ { "description": "Tensor id", "in": "path", "name": "tensor", "required": true, "schema": { "enum": [ "elastic-compliance-sE", "elastic-stiffness-cE", "eo-rS", "eo-rT", "nlo-d", "permittivity-S", "permittivity-T", "photoelastic-p", "piezo-strain-d", "piezo-stress-e" ], "type": "string" } } ], "responses": { "200": { "content": { "application/json": {} }, "description": "All records of one tensor across variants, with per-component spread" } }, "summary": "All records of one tensor across variants, with per-component spread" } }, "/api/v1/tensors/{tensor}/{variant}.json": { "get": { "parameters": [ { "description": "Tensor id", "in": "path", "name": "tensor", "required": true, "schema": { "enum": [ "elastic-compliance-sE", "elastic-stiffness-cE", "eo-rS", "eo-rT", "nlo-d", "permittivity-S", "permittivity-T", "photoelastic-p", "piezo-strain-d", "piezo-stress-e" ], "type": "string" } }, { "in": "path", "name": "variant", "required": true, "schema": { "type": "string" } } ], "responses": { "200": { "content": { "application/json": {} }, "description": "Recommended tensor, alternatives and per-component spread" } }, "summary": "Recommended tensor, alternatives and per-component spread" } }, "/api/v1/tensors/{tensor}/{variant}/{source_id}.json": { "get": { "parameters": [ { "description": "Tensor id", "in": "path", "name": "tensor", "required": true, "schema": { "enum": [ "elastic-compliance-sE", "elastic-stiffness-cE", "eo-rS", "eo-rT", "nlo-d", "permittivity-S", "permittivity-T", "photoelastic-p", "piezo-strain-d", "piezo-stress-e" ], "type": "string" } }, { "in": "path", "name": "variant", "required": true, "schema": { "type": "string" } }, { "description": "Third segment of the record id", "in": "path", "name": "source_id", "required": true, "schema": { "type": "string" } } ], "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "record": { "$ref": "https://lithium-niobate.com/api/v1/schema/tensor.schema.json" } }, "type": "object" } } }, "description": "One tensor record with Voigt, full tensor, frame and symmetry form" } }, "summary": "One tensor record with Voigt, full tensor, frame and symmetry form" } }, "/api/v1/unverified.json": { "get": { "responses": { "200": { "content": { "application/json": {} }, "description": "Unverified rows, excluded from all default endpoints" } }, "summary": "Unverified rows, excluded from all default endpoints" } }, "/api/v1/variants.json": { "get": { "responses": { "200": { "content": { "application/json": { "schema": { "properties": { "variants": { "items": { "$ref": "https://lithium-niobate.com/api/v1/schema/variant.schema.json" }, "type": "array" } }, "type": "object" } } }, "description": "Material variants" } }, "summary": "Material variants" } }, "/llms-full.txt": { "get": { "responses": { "200": { "content": { "text/plain": {} }, "description": "Concatenated markdown of property data" } }, "summary": "Concatenated markdown of property data" } }, "/llms.txt": { "get": { "responses": { "200": { "content": { "text/plain": {} }, "description": "Agent index (llmstxt.org)" } }, "summary": "Agent index (llmstxt.org)" } } }, "servers": [ { "url": "https://lithium-niobate.com" } ] }