{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:N2LITZETMCHZJT4K6XZIHSNBTN","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":"19cb8ccf7ec2a7d4740af12d7edb14c093b60b9313b503cfe2cfd1d70725bb9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-09-22T11:50:16Z","title_canon_sha256":"85899093d09c12b4403a1022fc72515f8e753e8ac6ebf84096c67e99b5e80434"},"schema_version":"1.0","source":{"id":"1409.6148","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6148","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6148v1","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6148","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"N2LITZETMCHZ","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"N2LITZETMCHZJT4K","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"N2LITZET","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:e6be8c6de0f3cc4f6077f973355ec2ac7e9badab0bec64028eb7cc916e65d4f4","target":"graph","created_at":"2026-05-18T01:41:59Z","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":"Transmission through photoexcited semiconductors is used to temporally and spectrally shape a Terahertz pulse. By adjusting the optical pump-THz probe delay, we experimentally introduce a polar asymmetry in the pulse profile as high as 92%. To shape the spectrum, we apply the same technique after strongly chirping the Terahertz pulse. This led to significant reshaping of the spectrum with a 52% upshift of spectrum median. Pulse shaping techniques introduced here are of particular importance for temporal and spectral shape-sensitive THz nonlinear experiments.","authors_text":"Christoph P. Hauri, David G. Cooke, Marco Peccianti, Mostafa Shalaby, Roberto Morandotti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-09-22T11:50:16Z","title":"Temporal and Spectral Shaping of Broadband THz Pulses in a Photoexcited Semiconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6148","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:c6cc120bb7bcd17c6fa731b3e85a2ca2ca1858cf6274ade00124eafd95a9618a","target":"record","created_at":"2026-05-18T01:41:59Z","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":"19cb8ccf7ec2a7d4740af12d7edb14c093b60b9313b503cfe2cfd1d70725bb9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-09-22T11:50:16Z","title_canon_sha256":"85899093d09c12b4403a1022fc72515f8e753e8ac6ebf84096c67e99b5e80434"},"schema_version":"1.0","source":{"id":"1409.6148","kind":"arxiv","version":1}},"canonical_sha256":"6e9689e493608f94cf8af5f283c9a19b69389a6db03af2820662c9c17dd8e537","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e9689e493608f94cf8af5f283c9a19b69389a6db03af2820662c9c17dd8e537","first_computed_at":"2026-05-18T01:41:59.152925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:59.152925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"myk8dQNif9fiT5HuLGAW2IMBW7q4C2+7VFw6An26DhYAIV33t6NQILLnZQODm7UvUyastT1tVvGSgP+7TocwCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:59.153532Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6148","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6cc120bb7bcd17c6fa731b3e85a2ca2ca1858cf6274ade00124eafd95a9618a","sha256:e6be8c6de0f3cc4f6077f973355ec2ac7e9badab0bec64028eb7cc916e65d4f4"],"state_sha256":"ba2301bfd5ccad7442ee9aba99b30e0771b620a93d6590a3247b510486576a72"}