{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:IW5QEOVOG2VX76ZL3EY7Z5OJSU","short_pith_number":"pith:IW5QEOVO","schema_version":"1.0","canonical_sha256":"45bb023aae36ab7ffb2bd931fcf5c99535a4a3ede6a39acfe17cf2dcb6f3c4b5","source":{"kind":"arxiv","id":"2606.07444","version":1},"attestation_state":"computed","paper":{"title":"Optical Poling Reveals Hidden Molecular Restructuring in Multimode Fibers, Unlocking Ultra-Efficient Third-Order Nonlinearities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alessandro Tonello, Claire Lefort, C. Sandt, Dan-Esli Bouyou Bouyou, Jean-Ren\\'e Ducl\\`ere, Julie Cornette, Maggy Colas, Marc Fabert, Maxime Jonard, Thomas Larqu\\'e, Tigran Mansuryan, Vincent Couderc, Yago Arosa","submitted_at":"2026-06-05T16:46:01Z","abstract_excerpt":"Optical poling is a well-established technique for inducing \\chi^{(2)} nonlinearity, yet its impact on silica's molecular structure remains unexplored. Here, we report the first direct observation of molecular restructuring in large-core graded-index multimode fibers (MMFs) induced by optical poling, transforming the silica tetrahedral ring network. Through coherent light beating, this process converts large rings of more than four SiO_4 tetrahedra into smaller ones, altering both linear and nonlinear optical susceptibilities. Contrary to the assumption that poling efficiency stems solely from"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.07444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-05T16:46:01Z","cross_cats_sorted":[],"title_canon_sha256":"ed5753f9c39cc7d5c4e8e9541a8ae03d78ef82b3b1328410f2620c08ec2f2ea4","abstract_canon_sha256":"553f0ca0b7dbdbb7da9ea1f80937945bf44be157177870068cb32e42b451b37a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-08T01:05:27.504110Z","signature_b64":"jHCaK7awUzkDbbKGBnMmeSl1Zf9va/6wmV7QRy5M2GUc6jS3kUPnP632pBwsuPGZ64fBkG/XAtU5zw/vYVunDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45bb023aae36ab7ffb2bd931fcf5c99535a4a3ede6a39acfe17cf2dcb6f3c4b5","last_reissued_at":"2026-06-08T01:05:27.503249Z","signature_status":"signed_v1","first_computed_at":"2026-06-08T01:05:27.503249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical Poling Reveals Hidden Molecular Restructuring in Multimode Fibers, Unlocking Ultra-Efficient Third-Order Nonlinearities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alessandro Tonello, Claire Lefort, C. Sandt, Dan-Esli Bouyou Bouyou, Jean-Ren\\'e Ducl\\`ere, Julie Cornette, Maggy Colas, Marc Fabert, Maxime Jonard, Thomas Larqu\\'e, Tigran Mansuryan, Vincent Couderc, Yago Arosa","submitted_at":"2026-06-05T16:46:01Z","abstract_excerpt":"Optical poling is a well-established technique for inducing \\chi^{(2)} nonlinearity, yet its impact on silica's molecular structure remains unexplored. Here, we report the first direct observation of molecular restructuring in large-core graded-index multimode fibers (MMFs) induced by optical poling, transforming the silica tetrahedral ring network. Through coherent light beating, this process converts large rings of more than four SiO_4 tetrahedra into smaller ones, altering both linear and nonlinear optical susceptibilities. Contrary to the assumption that poling efficiency stems solely from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07444","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.07444/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.07444","created_at":"2026-06-08T01:05:27.503391+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.07444v1","created_at":"2026-06-08T01:05:27.503391+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07444","created_at":"2026-06-08T01:05:27.503391+00:00"},{"alias_kind":"pith_short_12","alias_value":"IW5QEOVOG2VX","created_at":"2026-06-08T01:05:27.503391+00:00"},{"alias_kind":"pith_short_16","alias_value":"IW5QEOVOG2VX76ZL","created_at":"2026-06-08T01:05:27.503391+00:00"},{"alias_kind":"pith_short_8","alias_value":"IW5QEOVO","created_at":"2026-06-08T01:05:27.503391+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU","json":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU.json","graph_json":"https://pith.science/api/pith-number/IW5QEOVOG2VX76ZL3EY7Z5OJSU/graph.json","events_json":"https://pith.science/api/pith-number/IW5QEOVOG2VX76ZL3EY7Z5OJSU/events.json","paper":"https://pith.science/paper/IW5QEOVO"},"agent_actions":{"view_html":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU","download_json":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU.json","view_paper":"https://pith.science/paper/IW5QEOVO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.07444&json=true","fetch_graph":"https://pith.science/api/pith-number/IW5QEOVOG2VX76ZL3EY7Z5OJSU/graph.json","fetch_events":"https://pith.science/api/pith-number/IW5QEOVOG2VX76ZL3EY7Z5OJSU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU/action/storage_attestation","attest_author":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU/action/author_attestation","sign_citation":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU/action/citation_signature","submit_replication":"https://pith.science/pith/IW5QEOVOG2VX76ZL3EY7Z5OJSU/action/replication_record"}},"created_at":"2026-06-08T01:05:27.503391+00:00","updated_at":"2026-06-08T01:05:27.503391+00:00"}