{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:YHFECRTA3QNSML23C2M6PLZMAV","short_pith_number":"pith:YHFECRTA","schema_version":"1.0","canonical_sha256":"c1ca414660dc1b262f5b1699e7af2c05685efed260547c49bb16744d727611b3","source":{"kind":"arxiv","id":"1510.00272","version":1},"attestation_state":"computed","paper":{"title":"A study of optical vortices inside the Talbot interferometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Apichart Pattanaporkratana, Pituk Panthong, Sarayut Deachapunya, Sorakrai Srisuphaphon, Surasak Chiangga","submitted_at":"2015-10-01T15:05:47Z","abstract_excerpt":"The optical Talbot interferometer has been used to explore the topological charges of optical vortices. We recorded the self-imaging of a diffraction grating in the near-field regime with the optical vortex of several topological charges. Our twisted light was generated by a spatial light modulator (SLM). Previous studies showed that interferometric methods can determine the particular orbital angular momentum (OAM) states, but a large number of OAM eigenvalues are difficult to distinguish from the interference patterns. Here, we show that the Talbot patterns can distinguish the charges as wel"},"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":"1510.00272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-10-01T15:05:47Z","cross_cats_sorted":[],"title_canon_sha256":"7a275ecadb4fb661b643d2f1f83a8fb7ce496c6ac8823e9f7e44fe2de92dca7e","abstract_canon_sha256":"897f47c40736f2285cc937052951208b1da2962695d894bf834e7dcb58f41ffa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:19.747131Z","signature_b64":"5oTgQOZZ08f01NDtwmJoFfChDQIHsK6469nb7iHp5tmkPRygJEqFH296v36OaZbWXgH4hLaLOEO5sQynfuoiDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1ca414660dc1b262f5b1699e7af2c05685efed260547c49bb16744d727611b3","last_reissued_at":"2026-05-18T01:31:19.746530Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:19.746530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A study of optical vortices inside the Talbot interferometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Apichart Pattanaporkratana, Pituk Panthong, Sarayut Deachapunya, Sorakrai Srisuphaphon, Surasak Chiangga","submitted_at":"2015-10-01T15:05:47Z","abstract_excerpt":"The optical Talbot interferometer has been used to explore the topological charges of optical vortices. We recorded the self-imaging of a diffraction grating in the near-field regime with the optical vortex of several topological charges. Our twisted light was generated by a spatial light modulator (SLM). Previous studies showed that interferometric methods can determine the particular orbital angular momentum (OAM) states, but a large number of OAM eigenvalues are difficult to distinguish from the interference patterns. Here, we show that the Talbot patterns can distinguish the charges as wel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00272","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":""},"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":"1510.00272","created_at":"2026-05-18T01:31:19.746635+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.00272v1","created_at":"2026-05-18T01:31:19.746635+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00272","created_at":"2026-05-18T01:31:19.746635+00:00"},{"alias_kind":"pith_short_12","alias_value":"YHFECRTA3QNS","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_16","alias_value":"YHFECRTA3QNSML23","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_8","alias_value":"YHFECRTA","created_at":"2026-05-18T12:29:50.041715+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/YHFECRTA3QNSML23C2M6PLZMAV","json":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV.json","graph_json":"https://pith.science/api/pith-number/YHFECRTA3QNSML23C2M6PLZMAV/graph.json","events_json":"https://pith.science/api/pith-number/YHFECRTA3QNSML23C2M6PLZMAV/events.json","paper":"https://pith.science/paper/YHFECRTA"},"agent_actions":{"view_html":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV","download_json":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV.json","view_paper":"https://pith.science/paper/YHFECRTA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.00272&json=true","fetch_graph":"https://pith.science/api/pith-number/YHFECRTA3QNSML23C2M6PLZMAV/graph.json","fetch_events":"https://pith.science/api/pith-number/YHFECRTA3QNSML23C2M6PLZMAV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV/action/storage_attestation","attest_author":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV/action/author_attestation","sign_citation":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV/action/citation_signature","submit_replication":"https://pith.science/pith/YHFECRTA3QNSML23C2M6PLZMAV/action/replication_record"}},"created_at":"2026-05-18T01:31:19.746635+00:00","updated_at":"2026-05-18T01:31:19.746635+00:00"}