{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:U7EOOYNFMSFDFQ4WKM4W5KVQP7","short_pith_number":"pith:U7EOOYNF","schema_version":"1.0","canonical_sha256":"a7c8e761a5648a32c39653396eaab07ff41a5c4dc355b883a64dd25c9d92318b","source":{"kind":"arxiv","id":"1104.2780","version":1},"attestation_state":"computed","paper":{"title":"Waveguide grating mirror in a fully suspended 10 meter Fabry-Perot cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andreas T\\\"unnermann, Borja Sorazu, Bryan W. Barr, Daniel Friedrich, Ernst-Bernhard Kley, Frank Br\\\"uckner, John Mcarthur, John Nelson, Karsten Danzmann, Ken A. Strain, Matthew P. Edgar, Michael Britzger, Michael V. Plissi, Roman Schnabel, Sabina H. Huttner, Stefan Hild, Stefanie Kroker","submitted_at":"2011-04-14T14:45:17Z","abstract_excerpt":"We report on the first demonstration of a fully suspended 10m Fabry-Perot cavity incorporating a waveguide grating as the coupling mirror. The cavity was kept on resonance by reading out the length fluctuations via the Pound-Drever-Hall method and employing feedback to the laser frequency. From the achieved finesse of 790 the grating reflectivity was determined to exceed 99.2% at the laser wavelength of 1064\\,nm, which is in good agreement with rigorous simulations. Our waveguide grating design was based on tantala and fused silica and included a ~20nm thin etch stop layer made of Al2O3 that a"},"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":"1104.2780","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-14T14:45:17Z","cross_cats_sorted":[],"title_canon_sha256":"c496f05ad0591f8513e47b4046a181886077cf5ec1a2783443566c4628bcc858","abstract_canon_sha256":"bf18e6bbdebf2fbca794c1efeb6aa3ee62ac46649977939e26b322c0dcda9c30"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:28.963599Z","signature_b64":"5Twq/x6b/MPRxXTSGTP0lctOA48+mJMuDPm3zaUVP6gvxbmuVCa0FVkOPL/+wFNKiyfZtHyWL+2ayS3j1m51DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7c8e761a5648a32c39653396eaab07ff41a5c4dc355b883a64dd25c9d92318b","last_reissued_at":"2026-05-18T02:02:28.962797Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:28.962797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Waveguide grating mirror in a fully suspended 10 meter Fabry-Perot cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andreas T\\\"unnermann, Borja Sorazu, Bryan W. Barr, Daniel Friedrich, Ernst-Bernhard Kley, Frank Br\\\"uckner, John Mcarthur, John Nelson, Karsten Danzmann, Ken A. Strain, Matthew P. Edgar, Michael Britzger, Michael V. Plissi, Roman Schnabel, Sabina H. Huttner, Stefan Hild, Stefanie Kroker","submitted_at":"2011-04-14T14:45:17Z","abstract_excerpt":"We report on the first demonstration of a fully suspended 10m Fabry-Perot cavity incorporating a waveguide grating as the coupling mirror. The cavity was kept on resonance by reading out the length fluctuations via the Pound-Drever-Hall method and employing feedback to the laser frequency. From the achieved finesse of 790 the grating reflectivity was determined to exceed 99.2% at the laser wavelength of 1064\\,nm, which is in good agreement with rigorous simulations. Our waveguide grating design was based on tantala and fused silica and included a ~20nm thin etch stop layer made of Al2O3 that a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.2780","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":"1104.2780","created_at":"2026-05-18T02:02:28.962934+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.2780v1","created_at":"2026-05-18T02:02:28.962934+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.2780","created_at":"2026-05-18T02:02:28.962934+00:00"},{"alias_kind":"pith_short_12","alias_value":"U7EOOYNFMSFD","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_16","alias_value":"U7EOOYNFMSFDFQ4W","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_8","alias_value":"U7EOOYNF","created_at":"2026-05-18T12:26:42.757692+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/U7EOOYNFMSFDFQ4WKM4W5KVQP7","json":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7.json","graph_json":"https://pith.science/api/pith-number/U7EOOYNFMSFDFQ4WKM4W5KVQP7/graph.json","events_json":"https://pith.science/api/pith-number/U7EOOYNFMSFDFQ4WKM4W5KVQP7/events.json","paper":"https://pith.science/paper/U7EOOYNF"},"agent_actions":{"view_html":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7","download_json":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7.json","view_paper":"https://pith.science/paper/U7EOOYNF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.2780&json=true","fetch_graph":"https://pith.science/api/pith-number/U7EOOYNFMSFDFQ4WKM4W5KVQP7/graph.json","fetch_events":"https://pith.science/api/pith-number/U7EOOYNFMSFDFQ4WKM4W5KVQP7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7/action/storage_attestation","attest_author":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7/action/author_attestation","sign_citation":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7/action/citation_signature","submit_replication":"https://pith.science/pith/U7EOOYNFMSFDFQ4WKM4W5KVQP7/action/replication_record"}},"created_at":"2026-05-18T02:02:28.962934+00:00","updated_at":"2026-05-18T02:02:28.962934+00:00"}