{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:NQFU6IOVP646HG6V47JS7WEGR3","short_pith_number":"pith:NQFU6IOV","schema_version":"1.0","canonical_sha256":"6c0b4f21d57fb9e39bd5e7d32fd8868ed06a1276facd36e78a4fc75928f3340d","source":{"kind":"arxiv","id":"1803.04126","version":2},"attestation_state":"computed","paper":{"title":"Laguerre-Gaussian mode sorter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"David T. Neilson, Haoshuo Chen, Joel Carpenter, Kwangwoong Kim, Nicolas K. Fontaine, Roland Ryf","submitted_at":"2018-03-12T06:20:58Z","abstract_excerpt":"Light's spatial properties represent an infinite state space, making it attractive for applications requiring high dimensionality, such as quantum mechanics and classical telecommunications, but also inherently spatial applications such as imaging and sensing. However, there is no demultiplexing device in the spatial domain comparable to a grating or calcite for the wavelength and polarisation domains respectively. Specifically, a simple device capable of splitting a finite beam into a large number of discrete spatially separated spots each containing a single orthogonal spatial component. We "},"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":"1803.04126","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-03-12T06:20:58Z","cross_cats_sorted":[],"title_canon_sha256":"1cbf1134146d39c9e99a41703071e3c7d9ac2e9c8703b8b24d3374c9a37dbc4f","abstract_canon_sha256":"df54606da5a7261429e0c3fbf0288bc755c5e3d75d11226fcb40860515852f03"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:07.107273Z","signature_b64":"yXK8PkiG/Xn/QM/UGmHiUCeKyVn9Z+D/ven/pTuXmFIROlVYhUjwiW+4iRTsRdN9u58orjRFScgZ9DYpUkNJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6c0b4f21d57fb9e39bd5e7d32fd8868ed06a1276facd36e78a4fc75928f3340d","last_reissued_at":"2026-05-17T23:43:07.106537Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:07.106537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Laguerre-Gaussian mode sorter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"David T. Neilson, Haoshuo Chen, Joel Carpenter, Kwangwoong Kim, Nicolas K. Fontaine, Roland Ryf","submitted_at":"2018-03-12T06:20:58Z","abstract_excerpt":"Light's spatial properties represent an infinite state space, making it attractive for applications requiring high dimensionality, such as quantum mechanics and classical telecommunications, but also inherently spatial applications such as imaging and sensing. However, there is no demultiplexing device in the spatial domain comparable to a grating or calcite for the wavelength and polarisation domains respectively. Specifically, a simple device capable of splitting a finite beam into a large number of discrete spatially separated spots each containing a single orthogonal spatial component. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.04126","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":"1803.04126","created_at":"2026-05-17T23:43:07.106677+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.04126v2","created_at":"2026-05-17T23:43:07.106677+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.04126","created_at":"2026-05-17T23:43:07.106677+00:00"},{"alias_kind":"pith_short_12","alias_value":"NQFU6IOVP646","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_16","alias_value":"NQFU6IOVP646HG6V","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_8","alias_value":"NQFU6IOV","created_at":"2026-05-18T12:32:40.477152+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/NQFU6IOVP646HG6V47JS7WEGR3","json":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3.json","graph_json":"https://pith.science/api/pith-number/NQFU6IOVP646HG6V47JS7WEGR3/graph.json","events_json":"https://pith.science/api/pith-number/NQFU6IOVP646HG6V47JS7WEGR3/events.json","paper":"https://pith.science/paper/NQFU6IOV"},"agent_actions":{"view_html":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3","download_json":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3.json","view_paper":"https://pith.science/paper/NQFU6IOV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.04126&json=true","fetch_graph":"https://pith.science/api/pith-number/NQFU6IOVP646HG6V47JS7WEGR3/graph.json","fetch_events":"https://pith.science/api/pith-number/NQFU6IOVP646HG6V47JS7WEGR3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3/action/storage_attestation","attest_author":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3/action/author_attestation","sign_citation":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3/action/citation_signature","submit_replication":"https://pith.science/pith/NQFU6IOVP646HG6V47JS7WEGR3/action/replication_record"}},"created_at":"2026-05-17T23:43:07.106677+00:00","updated_at":"2026-05-17T23:43:07.106677+00:00"}