{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NDHFR3VVYOYUFX7ZLF4EVND4VA","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":"e408e2108f2d0ee5021b3bc78cc7dda53dd10eb40a5db76768328be9ea6a18e4","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-07-02T08:10:58Z","title_canon_sha256":"34bbd0b3f35f0fc057de2c92afc0c58290124ea422c1b6a58c6bb83270f8e328"},"schema_version":"1.0","source":{"id":"1207.0305","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.0305","created_at":"2026-05-18T03:35:13Z"},{"alias_kind":"arxiv_version","alias_value":"1207.0305v1","created_at":"2026-05-18T03:35:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0305","created_at":"2026-05-18T03:35:13Z"},{"alias_kind":"pith_short_12","alias_value":"NDHFR3VVYOYU","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NDHFR3VVYOYUFX7Z","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NDHFR3VV","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:6c1d6fb597a45fa480b2922c474772d44511ff99eb4a823037be27e8433f2d95","target":"graph","created_at":"2026-05-18T03:35:13Z","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":"Spatial and spectral properties of the pulsed second harmonic generation in a periodically-poled KTP waveguide exploiting simultaneously the first, second, and third harmonics of periodic nonlinear modulation are analyzed. Experimental results are interpreted using a model based on finite elements method. Correlations between spatial and spectral properties of the fundamental and second-harmonic fields are revealed. Individual nonlinear processes can be exploited combining spatial and spectral filtering. Also the influence of waveguide parameters to the second-harmonic spectra is addressed.","authors_text":"Jan Pe\\v{r}ina Jr, Jan Soubusta, Ji\\v{r}\\'i Svozil\\'ik, Ond\\v{r}ej Haderka, Radek Machulka","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-07-02T08:10:58Z","title":"Spatial and spectral properties of the pulsed second-harmonic generation in a PP-KTP waveguide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0305","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":"sha256:521a82fcc338a75c118b7ca1a5fdd6b35f8ccca59abef071a1ad3b2aa4741385","target":"record","created_at":"2026-05-18T03:35:13Z","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":"e408e2108f2d0ee5021b3bc78cc7dda53dd10eb40a5db76768328be9ea6a18e4","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-07-02T08:10:58Z","title_canon_sha256":"34bbd0b3f35f0fc057de2c92afc0c58290124ea422c1b6a58c6bb83270f8e328"},"schema_version":"1.0","source":{"id":"1207.0305","kind":"arxiv","version":1}},"canonical_sha256":"68ce58eeb5c3b142dff959784ab47ca8311ecbb1c4da29a0de836086ad3dc3e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68ce58eeb5c3b142dff959784ab47ca8311ecbb1c4da29a0de836086ad3dc3e5","first_computed_at":"2026-05-18T03:35:13.799509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:13.799509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rWzA9S56qmQN6DlNaULjmJm1DY/vAPrGt3eE0G/c+TLpPzEtkFlcqureecj4uUrZ3501KFBjk/rCgTzGSMtqDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:13.800140Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.0305","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:521a82fcc338a75c118b7ca1a5fdd6b35f8ccca59abef071a1ad3b2aa4741385","sha256:6c1d6fb597a45fa480b2922c474772d44511ff99eb4a823037be27e8433f2d95"],"state_sha256":"f779a7beafb259718d4b50521ac8386bd0a9bf2d93d8ae18771ead7137925de3"}