{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:NYEVZQLZ4HA6WMMWL5SHKR7D2V","short_pith_number":"pith:NYEVZQLZ","schema_version":"1.0","canonical_sha256":"6e095cc179e1c1eb31965f647547e3d548d16c33e806c1076d8ac992c05978ff","source":{"kind":"arxiv","id":"2404.02376","version":1},"attestation_state":"computed","paper":{"title":"Efficient ultra-broadband low-resolution astrophotonic spectrographs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","physics.optics"],"primary_cat":"astro-ph.IM","authors_text":"Ashok Balakrishnan, Dimitri Mawet, Greg Sercel, Jeffrey Jewell, Jielong Yin, J. Kent Wallace, Katarzyna Lawniczuk, Marco Passoni, Nemanja Jovanovic, Pradip Gatkine, Ronald Broeke, Serge Bidnyk","submitted_at":"2024-04-03T00:25:29Z","abstract_excerpt":"Broadband low-resolution near-infrared spectrographs in a compact form are crucial for ground- and space-based astronomy and other fields of sensing. Astronomical spectroscopy poses stringent requirements including high efficiency, broad band operation ($>$ 300 nm), and in some cases, polarization insensitivity. We present and compare experimental results from the design, fabrication, and characterization of broadband (1200 - 1650 nm) arrayed waveguide grating (AWG) spectrographs built using the two most promising low-loss platforms - Si$_3$N$_4$ (rectangular waveguides) and doped-SiO$_2$ (squ"},"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":"2404.02376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-04-03T00:25:29Z","cross_cats_sorted":["physics.ins-det","physics.optics"],"title_canon_sha256":"7aad6b91195e7a76a1ec4f8215d0d6f92dbf3f4a78fdc9b40dc0e3d70d49194a","abstract_canon_sha256":"ecdaf3c721d044cdc591fe0ca37d4ea64318ebb2ad90edeaece3202878b32437"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:03:55.056810Z","signature_b64":"Hgvy06mNh7fr/9qSzJONgfnAUBTYyMhcnNSMGK/WyooLHS/N00IwYYfCnJCDuEpTFjzc1qyvdsGnmFrzuHSmBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e095cc179e1c1eb31965f647547e3d548d16c33e806c1076d8ac992c05978ff","last_reissued_at":"2026-07-05T08:03:55.056236Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:03:55.056236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Efficient ultra-broadband low-resolution astrophotonic spectrographs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","physics.optics"],"primary_cat":"astro-ph.IM","authors_text":"Ashok Balakrishnan, Dimitri Mawet, Greg Sercel, Jeffrey Jewell, Jielong Yin, J. Kent Wallace, Katarzyna Lawniczuk, Marco Passoni, Nemanja Jovanovic, Pradip Gatkine, Ronald Broeke, Serge Bidnyk","submitted_at":"2024-04-03T00:25:29Z","abstract_excerpt":"Broadband low-resolution near-infrared spectrographs in a compact form are crucial for ground- and space-based astronomy and other fields of sensing. Astronomical spectroscopy poses stringent requirements including high efficiency, broad band operation ($>$ 300 nm), and in some cases, polarization insensitivity. We present and compare experimental results from the design, fabrication, and characterization of broadband (1200 - 1650 nm) arrayed waveguide grating (AWG) spectrographs built using the two most promising low-loss platforms - Si$_3$N$_4$ (rectangular waveguides) and doped-SiO$_2$ (squ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.02376","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/2404.02376/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":"2404.02376","created_at":"2026-07-05T08:03:55.056301+00:00"},{"alias_kind":"arxiv_version","alias_value":"2404.02376v1","created_at":"2026-07-05T08:03:55.056301+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.02376","created_at":"2026-07-05T08:03:55.056301+00:00"},{"alias_kind":"pith_short_12","alias_value":"NYEVZQLZ4HA6","created_at":"2026-07-05T08:03:55.056301+00:00"},{"alias_kind":"pith_short_16","alias_value":"NYEVZQLZ4HA6WMMW","created_at":"2026-07-05T08:03:55.056301+00:00"},{"alias_kind":"pith_short_8","alias_value":"NYEVZQLZ","created_at":"2026-07-05T08:03:55.056301+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/NYEVZQLZ4HA6WMMWL5SHKR7D2V","json":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V.json","graph_json":"https://pith.science/api/pith-number/NYEVZQLZ4HA6WMMWL5SHKR7D2V/graph.json","events_json":"https://pith.science/api/pith-number/NYEVZQLZ4HA6WMMWL5SHKR7D2V/events.json","paper":"https://pith.science/paper/NYEVZQLZ"},"agent_actions":{"view_html":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V","download_json":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V.json","view_paper":"https://pith.science/paper/NYEVZQLZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2404.02376&json=true","fetch_graph":"https://pith.science/api/pith-number/NYEVZQLZ4HA6WMMWL5SHKR7D2V/graph.json","fetch_events":"https://pith.science/api/pith-number/NYEVZQLZ4HA6WMMWL5SHKR7D2V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V/action/storage_attestation","attest_author":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V/action/author_attestation","sign_citation":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V/action/citation_signature","submit_replication":"https://pith.science/pith/NYEVZQLZ4HA6WMMWL5SHKR7D2V/action/replication_record"}},"created_at":"2026-07-05T08:03:55.056301+00:00","updated_at":"2026-07-05T08:03:55.056301+00:00"}