{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:P3GOIRFHWN7AYBPDWWIPYNV2XX","short_pith_number":"pith:P3GOIRFH","schema_version":"1.0","canonical_sha256":"7ecce444a7b37e0c05e3b590fc36babdd97821420339707fdc09b5672bb01aca","source":{"kind":"arxiv","id":"1512.04125","version":2},"attestation_state":"computed","paper":{"title":"Coupled orbital angular momentum conversions in a quasi-periodically poled LiTaO3 crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Dan Wei, Dunzhao Wei, Guang Yang, Min Xiao, Rui Ni, S.N.Zhu, Wei Hu, Wei Ji, Xiaopeng Hu, Xinyuan Fang, Yong Zhang","submitted_at":"2015-12-13T21:28:00Z","abstract_excerpt":"We experimentally demonstrate the orbital angular momentum (OAM) conversion by the coupled nonlinear optical processes in a quasi-periodically poled LiTaO3 crystal. In such crystal, third-harmonic generation (THG) is realized by the coupled second-harmonic generation (SHG) and sum-frequency generation (SFG) processes, i.e., SHG is dependent on SFG and vice versa. The OAMs of the interacting waves are proved to be conserved in such coupled nonlinear optical processes. As increasing the input OAM in the experiment, the conversion efficiency decreases because of the reduced fundamental power inte"},"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":"1512.04125","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-12-13T21:28:00Z","cross_cats_sorted":[],"title_canon_sha256":"ead59bafb88b830fda14f535c0c0f15c187576825eb8bdee610981b8c6551d0d","abstract_canon_sha256":"d24ebe09e843726186e1a4fd743cf48013955ee1ef47fd5c698ca7ac27dd712f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:44.690781Z","signature_b64":"gKZBitmTssdp60b/lb4M/hy/1vQ+1ZvLNfZega0nxkuNNudJ9+fK78GwfUaWOlPEGyQZ8G+5QQK0W2gsjyIaCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ecce444a7b37e0c05e3b590fc36babdd97821420339707fdc09b5672bb01aca","last_reissued_at":"2026-05-18T01:16:44.690135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:44.690135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coupled orbital angular momentum conversions in a quasi-periodically poled LiTaO3 crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Dan Wei, Dunzhao Wei, Guang Yang, Min Xiao, Rui Ni, S.N.Zhu, Wei Hu, Wei Ji, Xiaopeng Hu, Xinyuan Fang, Yong Zhang","submitted_at":"2015-12-13T21:28:00Z","abstract_excerpt":"We experimentally demonstrate the orbital angular momentum (OAM) conversion by the coupled nonlinear optical processes in a quasi-periodically poled LiTaO3 crystal. In such crystal, third-harmonic generation (THG) is realized by the coupled second-harmonic generation (SHG) and sum-frequency generation (SFG) processes, i.e., SHG is dependent on SFG and vice versa. The OAMs of the interacting waves are proved to be conserved in such coupled nonlinear optical processes. As increasing the input OAM in the experiment, the conversion efficiency decreases because of the reduced fundamental power inte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04125","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1512.04125","created_at":"2026-05-18T01:16:44.690241+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.04125v2","created_at":"2026-05-18T01:16:44.690241+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04125","created_at":"2026-05-18T01:16:44.690241+00:00"},{"alias_kind":"pith_short_12","alias_value":"P3GOIRFHWN7A","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"P3GOIRFHWN7AYBPD","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"P3GOIRFH","created_at":"2026-05-18T12:29:34.919912+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/P3GOIRFHWN7AYBPDWWIPYNV2XX","json":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX.json","graph_json":"https://pith.science/api/pith-number/P3GOIRFHWN7AYBPDWWIPYNV2XX/graph.json","events_json":"https://pith.science/api/pith-number/P3GOIRFHWN7AYBPDWWIPYNV2XX/events.json","paper":"https://pith.science/paper/P3GOIRFH"},"agent_actions":{"view_html":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX","download_json":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX.json","view_paper":"https://pith.science/paper/P3GOIRFH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.04125&json=true","fetch_graph":"https://pith.science/api/pith-number/P3GOIRFHWN7AYBPDWWIPYNV2XX/graph.json","fetch_events":"https://pith.science/api/pith-number/P3GOIRFHWN7AYBPDWWIPYNV2XX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX/action/storage_attestation","attest_author":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX/action/author_attestation","sign_citation":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX/action/citation_signature","submit_replication":"https://pith.science/pith/P3GOIRFHWN7AYBPDWWIPYNV2XX/action/replication_record"}},"created_at":"2026-05-18T01:16:44.690241+00:00","updated_at":"2026-05-18T01:16:44.690241+00:00"}