{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DJYDGF73EHM6ERTEU6V2N4GITI","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2f23e71b0a9b4c8aa58c7cf64b29a5add5930e4527e2db29700cba72be444696","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-07T18:36:31Z","title_canon_sha256":"76f4d8b486e7b1d235f0fe7d0e128e77537529231d816903e3114f70793048ee"},"schema_version":"1.0","source":{"id":"1806.02854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02854","created_at":"2026-05-18T00:13:54Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02854v1","created_at":"2026-05-18T00:13:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02854","created_at":"2026-05-18T00:13:54Z"},{"alias_kind":"pith_short_12","alias_value":"DJYDGF73EHM6","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DJYDGF73EHM6ERTE","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DJYDGF73","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:e34e60820ac508ce4026b28a4969efea06a11fb2f179a3e5572ee0ec331bfa4e","target":"graph","created_at":"2026-05-18T00:13:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The rigorous coupled wave approach (RCWA) was implemented to investigate optical absorption in a triple-p-i-n-junction amorphous-silicon solar cell with a 2D metallic periodically corrugated backreflector (PCBR). Both total and useful absorptances were computed against the free-space wavelength $\\lambda_o$ for both s- and p-polarized polarization states. The useful absorptance in each of the three p-i-n junctions was also computed for normal as well as oblique incidence. Furthermore, two canonical boundary-value problems were solved for the prediction of guided-wave modes (GWMs): surface-plasm","authors_text":"Akhlesh Lakhtakiaa, Benjamin J. Civiletti, Faiz Ahmad, Peter B. Monk, Tom H. Anderson","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-07T18:36:31Z","title":"On optical-absorption peaks in a nonhomogeneous thin-film solar cell with a two-dimensional periodically corrugated metallic backreflector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02854","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9ff8101f7e2474a6697019d5a041271a2d5a82ff09c48023a14aed93bf958d5d","target":"record","created_at":"2026-05-18T00:13:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2f23e71b0a9b4c8aa58c7cf64b29a5add5930e4527e2db29700cba72be444696","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-07T18:36:31Z","title_canon_sha256":"76f4d8b486e7b1d235f0fe7d0e128e77537529231d816903e3114f70793048ee"},"schema_version":"1.0","source":{"id":"1806.02854","kind":"arxiv","version":1}},"canonical_sha256":"1a703317fb21d9e24664a7aba6f0c89a1bd9f44540fbf7792691fad978fdaf7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a703317fb21d9e24664a7aba6f0c89a1bd9f44540fbf7792691fad978fdaf7f","first_computed_at":"2026-05-18T00:13:54.604009Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:54.604009Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WmTdRoOH6Mpzc83klxEX1SWglPoTFmNUJ98ArW7YlS/urBfBaOEft+E2IxEt7StKD4qDIuQHZe83RzKVFi2EBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:54.604712Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.02854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ff8101f7e2474a6697019d5a041271a2d5a82ff09c48023a14aed93bf958d5d","sha256:e34e60820ac508ce4026b28a4969efea06a11fb2f179a3e5572ee0ec331bfa4e"],"state_sha256":"fd1e33d18acc52d9835d946bfb6fa17fec0ae5b0049c2db6137318246e04dce2"}