{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:ZJX5TLWUHA5QS2WZVSOSP75KSR","short_pith_number":"pith:ZJX5TLWU","schema_version":"1.0","canonical_sha256":"ca6fd9aed4383b096ad9ac9d27ffaa946c71448e31e73eaf8ff7674e07da8cb9","source":{"kind":"arxiv","id":"1811.03225","version":2},"attestation_state":"computed","paper":{"title":"Multi-microjoule GaSe-based mid-infrared optical parametric amplifier with an ultra-broad idler spectrum covering 4.2-16 {\\mu}m","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hao Li, Houkun Liang, Kun Liu, Lifeng Wang, Qi Jie Wang, Shizhen Qu, Tino Lang, Ying Zhang","submitted_at":"2018-11-08T02:27:46Z","abstract_excerpt":"We report a multi-microjoule, ultra-broadband mid-infrared optical parametric amplifier based on a GaSe nonlinear crystal pumped at ~2 {\\mu}m. The generated idler pulse has a flat spectrum spanning from 4.5 to 13.3 {\\mu}m at -3 dB and 4.2 to 16 {\\mu}m in the full spectral range, with a central wavelength of 8.8 {\\mu}m. The proposed scheme supports a sub-cycle Fourier-transform-limited pulse width. A (2+1)-dimensional numerical simulation is employed to reproduce the obtained idler spectrum. To our best knowledge, this is the broadest -3 dB spectrum ever obtained by optical parametric amplifier"},"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":"1811.03225","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-08T02:27:46Z","cross_cats_sorted":[],"title_canon_sha256":"5021fa8baa1bd14da23712f6440d4da4975b79ca90656f5c7e0659c0f127fcda","abstract_canon_sha256":"002dc7ffb4bf48678e47f2f667007c61b281aac7b40521ea02998349c5192803"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:25.340650Z","signature_b64":"cps1AEAgBv2zWTrRZOMwEW3ibKJ7H8AdONEq7x53egDtKIJJ2C53n/iPSRbfkXopfgkmPJYpajS+w1kLxw4HAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca6fd9aed4383b096ad9ac9d27ffaa946c71448e31e73eaf8ff7674e07da8cb9","last_reissued_at":"2026-05-17T23:39:25.340065Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:25.340065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-microjoule GaSe-based mid-infrared optical parametric amplifier with an ultra-broad idler spectrum covering 4.2-16 {\\mu}m","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hao Li, Houkun Liang, Kun Liu, Lifeng Wang, Qi Jie Wang, Shizhen Qu, Tino Lang, Ying Zhang","submitted_at":"2018-11-08T02:27:46Z","abstract_excerpt":"We report a multi-microjoule, ultra-broadband mid-infrared optical parametric amplifier based on a GaSe nonlinear crystal pumped at ~2 {\\mu}m. The generated idler pulse has a flat spectrum spanning from 4.5 to 13.3 {\\mu}m at -3 dB and 4.2 to 16 {\\mu}m in the full spectral range, with a central wavelength of 8.8 {\\mu}m. The proposed scheme supports a sub-cycle Fourier-transform-limited pulse width. A (2+1)-dimensional numerical simulation is employed to reproduce the obtained idler spectrum. To our best knowledge, this is the broadest -3 dB spectrum ever obtained by optical parametric amplifier"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03225","kind":"arxiv","version":2},"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":"1811.03225","created_at":"2026-05-17T23:39:25.340157+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.03225v2","created_at":"2026-05-17T23:39:25.340157+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03225","created_at":"2026-05-17T23:39:25.340157+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZJX5TLWUHA5Q","created_at":"2026-05-18T12:33:07.085635+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZJX5TLWUHA5QS2WZ","created_at":"2026-05-18T12:33:07.085635+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZJX5TLWU","created_at":"2026-05-18T12:33:07.085635+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/ZJX5TLWUHA5QS2WZVSOSP75KSR","json":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR.json","graph_json":"https://pith.science/api/pith-number/ZJX5TLWUHA5QS2WZVSOSP75KSR/graph.json","events_json":"https://pith.science/api/pith-number/ZJX5TLWUHA5QS2WZVSOSP75KSR/events.json","paper":"https://pith.science/paper/ZJX5TLWU"},"agent_actions":{"view_html":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR","download_json":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR.json","view_paper":"https://pith.science/paper/ZJX5TLWU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.03225&json=true","fetch_graph":"https://pith.science/api/pith-number/ZJX5TLWUHA5QS2WZVSOSP75KSR/graph.json","fetch_events":"https://pith.science/api/pith-number/ZJX5TLWUHA5QS2WZVSOSP75KSR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR/action/storage_attestation","attest_author":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR/action/author_attestation","sign_citation":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR/action/citation_signature","submit_replication":"https://pith.science/pith/ZJX5TLWUHA5QS2WZVSOSP75KSR/action/replication_record"}},"created_at":"2026-05-17T23:39:25.340157+00:00","updated_at":"2026-05-17T23:39:25.340157+00:00"}