{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:EGZ56HM3C53VLMEOXXBJFZBILE","short_pith_number":"pith:EGZ56HM3","schema_version":"1.0","canonical_sha256":"21b3df1d9b177755b08ebdc292e428591e7128725087adc7453e6c8cf842fb99","source":{"kind":"arxiv","id":"1807.05461","version":1},"attestation_state":"computed","paper":{"title":"Compound Metaoptics for Amplitude and Phase Control of Wavefronts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anthony Grbic, Brian O. Raeker","submitted_at":"2018-07-14T22:46:10Z","abstract_excerpt":"Metasurfaces allow tailored control over electromagnetic wavefronts. However, due to the local conservation of power flow, a passive, lossless, and reflectionless metasurface is limited to imparting phase discontinuities -- and not power density discontinuities -- onto a wavefront. Here, we show how the phase and power density profiles of a wavefront can be independently controlled using two closely-spaced, phase-discontinuous metasurfaces. The two metasurfaces, each designed to exhibit specific refractive properties, are separated by a wavelength-scale distance and together form a compound me"},"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":"1807.05461","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-07-14T22:46:10Z","cross_cats_sorted":[],"title_canon_sha256":"a4acda9d1ffc2a2ecddb213bdc9927e4f0ccf287ca5cc1b072a90eb3d9cd647a","abstract_canon_sha256":"40c78af173f2ee9f913fd302507fef3f0f8aad580dfb5aa6b68e2362dc8e637b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:13.102002Z","signature_b64":"pXVNtBX+GghMxm9hdL4bL8HHGrkApdN0HYZ7NWjoaMIY1T+53QvXOnPY6+v7WThY5396ajdv9YlWBmARm5ZTAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21b3df1d9b177755b08ebdc292e428591e7128725087adc7453e6c8cf842fb99","last_reissued_at":"2026-05-17T23:50:13.101575Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:13.101575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Compound Metaoptics for Amplitude and Phase Control of Wavefronts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anthony Grbic, Brian O. Raeker","submitted_at":"2018-07-14T22:46:10Z","abstract_excerpt":"Metasurfaces allow tailored control over electromagnetic wavefronts. However, due to the local conservation of power flow, a passive, lossless, and reflectionless metasurface is limited to imparting phase discontinuities -- and not power density discontinuities -- onto a wavefront. Here, we show how the phase and power density profiles of a wavefront can be independently controlled using two closely-spaced, phase-discontinuous metasurfaces. The two metasurfaces, each designed to exhibit specific refractive properties, are separated by a wavelength-scale distance and together form a compound me"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05461","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":"1807.05461","created_at":"2026-05-17T23:50:13.101634+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.05461v1","created_at":"2026-05-17T23:50:13.101634+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05461","created_at":"2026-05-17T23:50:13.101634+00:00"},{"alias_kind":"pith_short_12","alias_value":"EGZ56HM3C53V","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_16","alias_value":"EGZ56HM3C53VLMEO","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_8","alias_value":"EGZ56HM3","created_at":"2026-05-18T12:32:22.470017+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/EGZ56HM3C53VLMEOXXBJFZBILE","json":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE.json","graph_json":"https://pith.science/api/pith-number/EGZ56HM3C53VLMEOXXBJFZBILE/graph.json","events_json":"https://pith.science/api/pith-number/EGZ56HM3C53VLMEOXXBJFZBILE/events.json","paper":"https://pith.science/paper/EGZ56HM3"},"agent_actions":{"view_html":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE","download_json":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE.json","view_paper":"https://pith.science/paper/EGZ56HM3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.05461&json=true","fetch_graph":"https://pith.science/api/pith-number/EGZ56HM3C53VLMEOXXBJFZBILE/graph.json","fetch_events":"https://pith.science/api/pith-number/EGZ56HM3C53VLMEOXXBJFZBILE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE/action/storage_attestation","attest_author":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE/action/author_attestation","sign_citation":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE/action/citation_signature","submit_replication":"https://pith.science/pith/EGZ56HM3C53VLMEOXXBJFZBILE/action/replication_record"}},"created_at":"2026-05-17T23:50:13.101634+00:00","updated_at":"2026-05-17T23:50:13.101634+00:00"}