{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:TUD3ONEJVHZ3SVHE5ROZIKUBV6","short_pith_number":"pith:TUD3ONEJ","schema_version":"1.0","canonical_sha256":"9d07b73489a9f3b954e4ec5d942a81af862cccaa50b1eda6d0ba09e21680611a","source":{"kind":"arxiv","id":"2104.09818","version":1},"attestation_state":"computed","paper":{"title":"Controllable finite ultra-narrow quality-factor peak in a perturbed Dirac-cone band structure of a photonic crystal slab","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Akhil Raj Kumar Kalapala, Alex Y. Song, Cheng Guo, Ganesh Balakrishnan, Haiwen Wang, Kevin James Reilly, Ricky Gibson, Robert Bedford, Sadhvikas Addamane, Shanhui Fan, Thomas Rotter, Weidong Zhou","submitted_at":"2021-04-20T08:07:54Z","abstract_excerpt":"We show that by using a perturbed photonic Dirac-cone, one can realize ultra-narrow and finite Q-factor peak in the wavevector space, with both the peak value and the width separately tunable. We also discuss a lower bound in the minimal viable width given a peak Q-value while maintaining sufficient Q differentiation among modes. The strong angular and frequency Q-selection finds applications in optical devices where strong angle- and frequency-selection is needed."},"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":"2104.09818","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2021-04-20T08:07:54Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"49661b452af1e4443d3967b6f9d2e8de1d469fb5ad570bf93027899b9093250d","abstract_canon_sha256":"8ae6d1310e070552206590f204e21fee512faf7a4887a7317f11176a8840af91"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:04:50.979578Z","signature_b64":"wRNsCkFA1Eii83saveLlu5Ijt8HM1ItzQPLPD1AuQATAaDHuqkFkOPMUP10YikwztEkzuDjxOxHZvi29H9lBAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d07b73489a9f3b954e4ec5d942a81af862cccaa50b1eda6d0ba09e21680611a","last_reissued_at":"2026-07-05T03:04:50.979206Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:04:50.979206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Controllable finite ultra-narrow quality-factor peak in a perturbed Dirac-cone band structure of a photonic crystal slab","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Akhil Raj Kumar Kalapala, Alex Y. Song, Cheng Guo, Ganesh Balakrishnan, Haiwen Wang, Kevin James Reilly, Ricky Gibson, Robert Bedford, Sadhvikas Addamane, Shanhui Fan, Thomas Rotter, Weidong Zhou","submitted_at":"2021-04-20T08:07:54Z","abstract_excerpt":"We show that by using a perturbed photonic Dirac-cone, one can realize ultra-narrow and finite Q-factor peak in the wavevector space, with both the peak value and the width separately tunable. We also discuss a lower bound in the minimal viable width given a peak Q-value while maintaining sufficient Q differentiation among modes. The strong angular and frequency Q-selection finds applications in optical devices where strong angle- and frequency-selection is needed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.09818","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.09818/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":"2104.09818","created_at":"2026-07-05T03:04:50.979264+00:00"},{"alias_kind":"arxiv_version","alias_value":"2104.09818v1","created_at":"2026-07-05T03:04:50.979264+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.09818","created_at":"2026-07-05T03:04:50.979264+00:00"},{"alias_kind":"pith_short_12","alias_value":"TUD3ONEJVHZ3","created_at":"2026-07-05T03:04:50.979264+00:00"},{"alias_kind":"pith_short_16","alias_value":"TUD3ONEJVHZ3SVHE","created_at":"2026-07-05T03:04:50.979264+00:00"},{"alias_kind":"pith_short_8","alias_value":"TUD3ONEJ","created_at":"2026-07-05T03:04:50.979264+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/TUD3ONEJVHZ3SVHE5ROZIKUBV6","json":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6.json","graph_json":"https://pith.science/api/pith-number/TUD3ONEJVHZ3SVHE5ROZIKUBV6/graph.json","events_json":"https://pith.science/api/pith-number/TUD3ONEJVHZ3SVHE5ROZIKUBV6/events.json","paper":"https://pith.science/paper/TUD3ONEJ"},"agent_actions":{"view_html":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6","download_json":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6.json","view_paper":"https://pith.science/paper/TUD3ONEJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2104.09818&json=true","fetch_graph":"https://pith.science/api/pith-number/TUD3ONEJVHZ3SVHE5ROZIKUBV6/graph.json","fetch_events":"https://pith.science/api/pith-number/TUD3ONEJVHZ3SVHE5ROZIKUBV6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6/action/storage_attestation","attest_author":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6/action/author_attestation","sign_citation":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6/action/citation_signature","submit_replication":"https://pith.science/pith/TUD3ONEJVHZ3SVHE5ROZIKUBV6/action/replication_record"}},"created_at":"2026-07-05T03:04:50.979264+00:00","updated_at":"2026-07-05T03:04:50.979264+00:00"}