{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:FLDBCY3C4RFMCFJKBHBRNFWJ2D","short_pith_number":"pith:FLDBCY3C","schema_version":"1.0","canonical_sha256":"2ac6116362e44ac1152a09c31696c9d0cd062753c63d1ac8bd0cca4eb4cd8605","source":{"kind":"arxiv","id":"2108.01681","version":3},"attestation_state":"computed","paper":{"title":"Nanometer-scale photon confinement in topology-optimized dielectric cavities","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.optics","authors_text":"Babak Vosoughi Lahijani, Henri Jansen, Jesper M{\\o}rk, Laura Nevenka Casses, Marcus Albrechtsen, Nicolas Stenger, Ole Sigmund, Rasmus Elleb{\\ae}k Christiansen, S{\\o}ren Engelberth Hansen, S{\\o}ren Stobbe, Vy Thi Hoang Nguyen","submitted_at":"2021-08-03T18:02:13Z","abstract_excerpt":"Nanotechnology enables in principle a precise mapping from design to device but relied so far on human intuition and simple optimizations. In nanophotonics, a central question is how to make devices in which the light-matter interaction strength is limited only by materials and nanofabrication. Here, we integrate measured fabrication constraints into topology optimization, aiming for the strongest possible light-matter interaction in a compact silicon membrane, demonstrating an unprecedented photonic nanocavity with a mode volume of $V\\sim3\\times10^{-4}\\,\\lambda^3$, quality factor $Q\\sim1100$,"},"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":"2108.01681","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-08-03T18:02:13Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"112a74dbfa9a6f96a10949ecf2eb7960f0fd2f4f5135111d32ed621b240d5f5a","abstract_canon_sha256":"81859dcc2723fab0bd2dd9c90420459147c1ebd92c063266d3985ea304abbe15"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:09:12.657079Z","signature_b64":"Liwcnwdp3bDSCq+pNNf1aJwO+cTRQ13yWLda1bFegBWBR6IYVUjXlYaF9zeHm38aOfisJZKlE+mozTerB8HoCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ac6116362e44ac1152a09c31696c9d0cd062753c63d1ac8bd0cca4eb4cd8605","last_reissued_at":"2026-07-05T05:09:12.656645Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:09:12.656645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nanometer-scale photon confinement in topology-optimized dielectric cavities","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.optics","authors_text":"Babak Vosoughi Lahijani, Henri Jansen, Jesper M{\\o}rk, Laura Nevenka Casses, Marcus Albrechtsen, Nicolas Stenger, Ole Sigmund, Rasmus Elleb{\\ae}k Christiansen, S{\\o}ren Engelberth Hansen, S{\\o}ren Stobbe, Vy Thi Hoang Nguyen","submitted_at":"2021-08-03T18:02:13Z","abstract_excerpt":"Nanotechnology enables in principle a precise mapping from design to device but relied so far on human intuition and simple optimizations. In nanophotonics, a central question is how to make devices in which the light-matter interaction strength is limited only by materials and nanofabrication. Here, we integrate measured fabrication constraints into topology optimization, aiming for the strongest possible light-matter interaction in a compact silicon membrane, demonstrating an unprecedented photonic nanocavity with a mode volume of $V\\sim3\\times10^{-4}\\,\\lambda^3$, quality factor $Q\\sim1100$,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01681","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.01681/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2108.01681","created_at":"2026-07-05T05:09:12.656702+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.01681v3","created_at":"2026-07-05T05:09:12.656702+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01681","created_at":"2026-07-05T05:09:12.656702+00:00"},{"alias_kind":"pith_short_12","alias_value":"FLDBCY3C4RFM","created_at":"2026-07-05T05:09:12.656702+00:00"},{"alias_kind":"pith_short_16","alias_value":"FLDBCY3C4RFMCFJK","created_at":"2026-07-05T05:09:12.656702+00:00"},{"alias_kind":"pith_short_8","alias_value":"FLDBCY3C","created_at":"2026-07-05T05:09:12.656702+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/FLDBCY3C4RFMCFJKBHBRNFWJ2D","json":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D.json","graph_json":"https://pith.science/api/pith-number/FLDBCY3C4RFMCFJKBHBRNFWJ2D/graph.json","events_json":"https://pith.science/api/pith-number/FLDBCY3C4RFMCFJKBHBRNFWJ2D/events.json","paper":"https://pith.science/paper/FLDBCY3C"},"agent_actions":{"view_html":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D","download_json":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D.json","view_paper":"https://pith.science/paper/FLDBCY3C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.01681&json=true","fetch_graph":"https://pith.science/api/pith-number/FLDBCY3C4RFMCFJKBHBRNFWJ2D/graph.json","fetch_events":"https://pith.science/api/pith-number/FLDBCY3C4RFMCFJKBHBRNFWJ2D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D/action/storage_attestation","attest_author":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D/action/author_attestation","sign_citation":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D/action/citation_signature","submit_replication":"https://pith.science/pith/FLDBCY3C4RFMCFJKBHBRNFWJ2D/action/replication_record"}},"created_at":"2026-07-05T05:09:12.656702+00:00","updated_at":"2026-07-05T05:09:12.656702+00:00"}