{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:NDTII3MOXLJVFIDOCGPKLLUW43","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":"d77a371851707081bcb74650001c0b2e08ade4d186e619d9fbb0405b3a9fa111","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-03-01T19:30:03Z","title_canon_sha256":"bdc325150aff9e7f7462ab6a9a140b16a90766a162513d7f617ea3273f896e39"},"schema_version":"1.0","source":{"id":"0903.0168","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0168","created_at":"2026-05-18T04:37:22Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0168v1","created_at":"2026-05-18T04:37:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0168","created_at":"2026-05-18T04:37:22Z"},{"alias_kind":"pith_short_12","alias_value":"NDTII3MOXLJV","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"NDTII3MOXLJVFIDO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"NDTII3MO","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:bd08afaee1e15179dcc304d3c4c24c13edfe8cccd526e5b74978e4034316f1fc","target":"graph","created_at":"2026-05-18T04:37:22Z","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":"We describe an ultrafast time resolved pump-probe spectroscopy setup aimed at studying the switching of nanophotonic structures. Both fs pump and probe pulses can be independently tuned over broad frequency range between 3850 and 21050 cm$^{-1}$. A broad pump scan range allows a large optical penetration depth, while a broad probe scan range is crucial to study strongly photonic crystals. A new data acquisition method allows for sensitive pump-probe measurements, and corrects for fluctuations in probe intensity and pump stray light. We observe a tenfold improvement of the precision of the setu","authors_text":"Philip J. Harding, Tijmen G. Euser, Willem L. Vos","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-03-01T19:30:03Z","title":"Broadband sensitive pump-probe setup for ultrafast optical switching of photonic nanostructures and semiconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0168","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":"sha256:6c5fe22a8012006b3aa6563e0d24d10719924219b255e61d361fb51f68f7231a","target":"record","created_at":"2026-05-18T04:37:22Z","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":"d77a371851707081bcb74650001c0b2e08ade4d186e619d9fbb0405b3a9fa111","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-03-01T19:30:03Z","title_canon_sha256":"bdc325150aff9e7f7462ab6a9a140b16a90766a162513d7f617ea3273f896e39"},"schema_version":"1.0","source":{"id":"0903.0168","kind":"arxiv","version":1}},"canonical_sha256":"68e6846d8ebad352a06e119ea5ae96e6f08e78f4d667ffded087d395272edeef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68e6846d8ebad352a06e119ea5ae96e6f08e78f4d667ffded087d395272edeef","first_computed_at":"2026-05-18T04:37:22.723284Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:37:22.723284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zoLNl8OJpsBz3niH7jez46wTdfXQl2WSsGP9CCyvhfdNGxjc+r1ctsAV1QV1aSnyKQJH2Kizonz65nZCgZQGBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:37:22.723725Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.0168","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c5fe22a8012006b3aa6563e0d24d10719924219b255e61d361fb51f68f7231a","sha256:bd08afaee1e15179dcc304d3c4c24c13edfe8cccd526e5b74978e4034316f1fc"],"state_sha256":"7babeb3eb572ef78b21c08ae69f390e779803c44a895da6c0e50261b4ae0de7b"}