{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:7HXQX3IO45NSROUEXA2O33CRB2","short_pith_number":"pith:7HXQX3IO","schema_version":"1.0","canonical_sha256":"f9ef0bed0ee75b28ba84b834edec510e8cc1cdd72c6722cd853bca89626c4639","source":{"kind":"arxiv","id":"1802.00268","version":1},"attestation_state":"computed","paper":{"title":"Retrieving the Size of Deep-subwavelength Objects via Tunable Optical Spin-Orbit Coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"H.P.Urbach, Zheng Xi","submitted_at":"2018-02-01T12:48:18Z","abstract_excerpt":"We propose a scheme to retrieve the size parameters of a nano-particle on a glass substrate at a scale much smaller than the wavelength. This is achieved by illuminating the particle using two plane waves to create rich and non-trivial local polarization distributions, and observing the far-field scattering pattern into the substrate. A simple dipole model which exploits tunneling effect of evanescent field into regions beyond the critical angle, as well as directional scattering due to spin-orbit coupling is developed, to relate the particle's shape, size and position to the far-field scatter"},"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":"1802.00268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-01T12:48:18Z","cross_cats_sorted":[],"title_canon_sha256":"540efe9526a6306319aebcfc3b07e08e50f27c93c5823966877117110cc133fb","abstract_canon_sha256":"c8ff005c2b5c761633f0d6ea3021386210b15653ebd9c9f1316ceac53fe08d9e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:18.440798Z","signature_b64":"SZmgw43DnKNrhUrtO1LkR/iuQkCkAM09KMinDET8SDdtwNqw7DXHsngg+aOiXHs8xPwTMWvji4H2BstsQiAbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9ef0bed0ee75b28ba84b834edec510e8cc1cdd72c6722cd853bca89626c4639","last_reissued_at":"2026-05-18T00:12:18.440050Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:18.440050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Retrieving the Size of Deep-subwavelength Objects via Tunable Optical Spin-Orbit Coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"H.P.Urbach, Zheng Xi","submitted_at":"2018-02-01T12:48:18Z","abstract_excerpt":"We propose a scheme to retrieve the size parameters of a nano-particle on a glass substrate at a scale much smaller than the wavelength. This is achieved by illuminating the particle using two plane waves to create rich and non-trivial local polarization distributions, and observing the far-field scattering pattern into the substrate. A simple dipole model which exploits tunneling effect of evanescent field into regions beyond the critical angle, as well as directional scattering due to spin-orbit coupling is developed, to relate the particle's shape, size and position to the far-field scatter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00268","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":"1802.00268","created_at":"2026-05-18T00:12:18.440170+00:00"},{"alias_kind":"arxiv_version","alias_value":"1802.00268v1","created_at":"2026-05-18T00:12:18.440170+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00268","created_at":"2026-05-18T00:12:18.440170+00:00"},{"alias_kind":"pith_short_12","alias_value":"7HXQX3IO45NS","created_at":"2026-05-18T12:32:11.075285+00:00"},{"alias_kind":"pith_short_16","alias_value":"7HXQX3IO45NSROUE","created_at":"2026-05-18T12:32:11.075285+00:00"},{"alias_kind":"pith_short_8","alias_value":"7HXQX3IO","created_at":"2026-05-18T12:32:11.075285+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/7HXQX3IO45NSROUEXA2O33CRB2","json":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2.json","graph_json":"https://pith.science/api/pith-number/7HXQX3IO45NSROUEXA2O33CRB2/graph.json","events_json":"https://pith.science/api/pith-number/7HXQX3IO45NSROUEXA2O33CRB2/events.json","paper":"https://pith.science/paper/7HXQX3IO"},"agent_actions":{"view_html":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2","download_json":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2.json","view_paper":"https://pith.science/paper/7HXQX3IO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1802.00268&json=true","fetch_graph":"https://pith.science/api/pith-number/7HXQX3IO45NSROUEXA2O33CRB2/graph.json","fetch_events":"https://pith.science/api/pith-number/7HXQX3IO45NSROUEXA2O33CRB2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2/action/storage_attestation","attest_author":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2/action/author_attestation","sign_citation":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2/action/citation_signature","submit_replication":"https://pith.science/pith/7HXQX3IO45NSROUEXA2O33CRB2/action/replication_record"}},"created_at":"2026-05-18T00:12:18.440170+00:00","updated_at":"2026-05-18T00:12:18.440170+00:00"}