{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:K63OYA6EBBD3IUNDRDQ2K366LI","short_pith_number":"pith:K63OYA6E","schema_version":"1.0","canonical_sha256":"57b6ec03c40847b451a388e1a56fde5a3932382b58f5e2c7bbf449a893ffc2a8","source":{"kind":"arxiv","id":"1208.4261","version":1},"attestation_state":"computed","paper":{"title":"Total Internal Reflection of Orbital Angular Momentum Beams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andrea Aiello, J. P. Woerdman, N. Hermosa, W. L\\\"offler","submitted_at":"2012-08-21T13:29:32Z","abstract_excerpt":"We investigate how beams with orbital angular momentum (OAM) behave under total internal reflection. This is studied in two complementary experiments: In the first experiment, we study geometric shifts of OAM beams upon total internal reflection (Goos-H\\\"anchen and Imbert-Fedorov shifts, for each the spatial and angular variant), and in the second experiment we determine changes in the OAM mode spectrum of a beam, again upon total internal reflection. As a result we find that in the first case, the shifts are independent of OAM and beam focussing, while in the second case, modifications in the"},"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":"1208.4261","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-08-21T13:29:32Z","cross_cats_sorted":[],"title_canon_sha256":"f72cdfa0d4cc9ad62d3317d60297b2d99f4c85cf60627b1f29e5ab75d45d6fb5","abstract_canon_sha256":"2359e10915a8aab89e983801f7d11ba045a379b20ac47b1f3acf7eabed31bf18"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:08.794662Z","signature_b64":"sZHarEinhjPh040/EhnkmmmhL0d2b+7x1u/PoCZ4ZLFCvP/JDgwUhM/KsUN45KySUaJMKEy9xdwHhNuslna6BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57b6ec03c40847b451a388e1a56fde5a3932382b58f5e2c7bbf449a893ffc2a8","last_reissued_at":"2026-05-18T01:55:08.794181Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:08.794181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Total Internal Reflection of Orbital Angular Momentum Beams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andrea Aiello, J. P. Woerdman, N. Hermosa, W. L\\\"offler","submitted_at":"2012-08-21T13:29:32Z","abstract_excerpt":"We investigate how beams with orbital angular momentum (OAM) behave under total internal reflection. This is studied in two complementary experiments: In the first experiment, we study geometric shifts of OAM beams upon total internal reflection (Goos-H\\\"anchen and Imbert-Fedorov shifts, for each the spatial and angular variant), and in the second experiment we determine changes in the OAM mode spectrum of a beam, again upon total internal reflection. As a result we find that in the first case, the shifts are independent of OAM and beam focussing, while in the second case, modifications in the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4261","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":"1208.4261","created_at":"2026-05-18T01:55:08.794252+00:00"},{"alias_kind":"arxiv_version","alias_value":"1208.4261v1","created_at":"2026-05-18T01:55:08.794252+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4261","created_at":"2026-05-18T01:55:08.794252+00:00"},{"alias_kind":"pith_short_12","alias_value":"K63OYA6EBBD3","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_16","alias_value":"K63OYA6EBBD3IUND","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_8","alias_value":"K63OYA6E","created_at":"2026-05-18T12:27:11.947152+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/K63OYA6EBBD3IUNDRDQ2K366LI","json":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI.json","graph_json":"https://pith.science/api/pith-number/K63OYA6EBBD3IUNDRDQ2K366LI/graph.json","events_json":"https://pith.science/api/pith-number/K63OYA6EBBD3IUNDRDQ2K366LI/events.json","paper":"https://pith.science/paper/K63OYA6E"},"agent_actions":{"view_html":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI","download_json":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI.json","view_paper":"https://pith.science/paper/K63OYA6E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1208.4261&json=true","fetch_graph":"https://pith.science/api/pith-number/K63OYA6EBBD3IUNDRDQ2K366LI/graph.json","fetch_events":"https://pith.science/api/pith-number/K63OYA6EBBD3IUNDRDQ2K366LI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI/action/storage_attestation","attest_author":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI/action/author_attestation","sign_citation":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI/action/citation_signature","submit_replication":"https://pith.science/pith/K63OYA6EBBD3IUNDRDQ2K366LI/action/replication_record"}},"created_at":"2026-05-18T01:55:08.794252+00:00","updated_at":"2026-05-18T01:55:08.794252+00:00"}