{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:RFFMWE4ONKXM4OA46CROLAALEG","short_pith_number":"pith:RFFMWE4O","schema_version":"1.0","canonical_sha256":"894acb138e6aaece381cf0a2e5800b21aaf481c260e5f61fa3323b5b9c288dbb","source":{"kind":"arxiv","id":"1008.3993","version":1},"attestation_state":"computed","paper":{"title":"Numerical Study of Amplified Spontaneous Emission and Lasing in Random Media","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hui Cao, Jonathan Andreasen","submitted_at":"2010-08-24T09:25:49Z","abstract_excerpt":"We simulate the transition from amplified spontaneous emission (ASE) to lasing in random systems with varying degrees of mode overlap. This is accomplished by solving the stochastic Maxwell-Bloch equations with the finite-difference time-domain method. Below lasing threshold, the continuous emission spectra are narrowed by frequency-dependent amplification. Our simulations reproduce the stochastic emission spikes in the spectra. Well-defined peaks, corresponding to the system resonances, emerge at higher pumping and are narrowed by stimulated emission before lasing takes place. Noise tends to "},"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":"1008.3993","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-08-24T09:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"ac16769eda95d3420601b23d74519a02b6d15b24c602fbf4a8b62ceae2ddaa0f","abstract_canon_sha256":"f647a09323e7c635b41b167452b135b2f7da3b46c7b839374fc6c6bd058ccd46"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:32:21.887406Z","signature_b64":"HLQxKyJJ9of9wOqkA6+bkkMA4Lu/uV2Wjkze2vAk9ekaSq4AuAo1lXPcxyZ4iMXIvyNnh4YO4QpiFFlA+WRHAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"894acb138e6aaece381cf0a2e5800b21aaf481c260e5f61fa3323b5b9c288dbb","last_reissued_at":"2026-05-18T04:32:21.886792Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:32:21.886792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Numerical Study of Amplified Spontaneous Emission and Lasing in Random Media","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hui Cao, Jonathan Andreasen","submitted_at":"2010-08-24T09:25:49Z","abstract_excerpt":"We simulate the transition from amplified spontaneous emission (ASE) to lasing in random systems with varying degrees of mode overlap. This is accomplished by solving the stochastic Maxwell-Bloch equations with the finite-difference time-domain method. Below lasing threshold, the continuous emission spectra are narrowed by frequency-dependent amplification. Our simulations reproduce the stochastic emission spikes in the spectra. Well-defined peaks, corresponding to the system resonances, emerge at higher pumping and are narrowed by stimulated emission before lasing takes place. Noise tends to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.3993","kind":"arxiv","version":1},"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":"1008.3993","created_at":"2026-05-18T04:32:21.886861+00:00"},{"alias_kind":"arxiv_version","alias_value":"1008.3993v1","created_at":"2026-05-18T04:32:21.886861+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.3993","created_at":"2026-05-18T04:32:21.886861+00:00"},{"alias_kind":"pith_short_12","alias_value":"RFFMWE4ONKXM","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"RFFMWE4ONKXM4OA4","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"RFFMWE4O","created_at":"2026-05-18T12:26:13.927090+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/RFFMWE4ONKXM4OA46CROLAALEG","json":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG.json","graph_json":"https://pith.science/api/pith-number/RFFMWE4ONKXM4OA46CROLAALEG/graph.json","events_json":"https://pith.science/api/pith-number/RFFMWE4ONKXM4OA46CROLAALEG/events.json","paper":"https://pith.science/paper/RFFMWE4O"},"agent_actions":{"view_html":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG","download_json":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG.json","view_paper":"https://pith.science/paper/RFFMWE4O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1008.3993&json=true","fetch_graph":"https://pith.science/api/pith-number/RFFMWE4ONKXM4OA46CROLAALEG/graph.json","fetch_events":"https://pith.science/api/pith-number/RFFMWE4ONKXM4OA46CROLAALEG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG/action/storage_attestation","attest_author":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG/action/author_attestation","sign_citation":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG/action/citation_signature","submit_replication":"https://pith.science/pith/RFFMWE4ONKXM4OA46CROLAALEG/action/replication_record"}},"created_at":"2026-05-18T04:32:21.886861+00:00","updated_at":"2026-05-18T04:32:21.886861+00:00"}