{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:CTROGCQ7HF6ZPXB6KXJZZZSUHA","short_pith_number":"pith:CTROGCQ7","schema_version":"1.0","canonical_sha256":"14e2e30a1f397d97dc3e55d39ce6543839f16a2a0b615409275816fb07128428","source":{"kind":"arxiv","id":"0902.3115","version":1},"attestation_state":"computed","paper":{"title":"Non-linear spectroscopy of rubidium: An undergraduate experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.ed-ph","authors_text":"A. Allafort, B. Hingant, J.-F. Roch, M. Pigeard, V. Jacques","submitted_at":"2009-02-18T12:31:59Z","abstract_excerpt":"In this paper, we describe two complementary non-linear spectroscopy methods which both allow to achieve Doppler-free spectra of atomic gases. First, saturated absorption spectroscopy is used to investigate the structure of the $5{\\rm S}_{1/2}\\to 5{\\rm P}_{3/2}$ transition in rubidium. Using a slightly modified experimental setup, Doppler-free two-photon absorption spectroscopy is then performed on the $5{\\rm S}_{1/2}\\to 5{\\rm D}_{5/2}$ transition in rubidium, leading to accurate measurements of the hyperfine structure of the $5{\\rm D}_{5/2}$ energy level. In addition, electric dipole selectio"},"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":"0902.3115","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2009-02-18T12:31:59Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"033b1305e43dca95dc17d2f3dfad65434d78cd12cb53bf1c27ab6ac341282a79","abstract_canon_sha256":"b49fba824adcfc21f47cae547610807a3766f0e8cf25a8978d71b23b898635ba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:47.176076Z","signature_b64":"NUi/Y6V2lwm/sDipQ8pWoBa27osrdxcF1RBORFM/CRQPVe1RWehPNOvAO1s71GJX0gklPBXzf9asOARXOR70CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14e2e30a1f397d97dc3e55d39ce6543839f16a2a0b615409275816fb07128428","last_reissued_at":"2026-05-18T02:14:47.175284Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:47.175284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-linear spectroscopy of rubidium: An undergraduate experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.ed-ph","authors_text":"A. Allafort, B. Hingant, J.-F. Roch, M. Pigeard, V. Jacques","submitted_at":"2009-02-18T12:31:59Z","abstract_excerpt":"In this paper, we describe two complementary non-linear spectroscopy methods which both allow to achieve Doppler-free spectra of atomic gases. First, saturated absorption spectroscopy is used to investigate the structure of the $5{\\rm S}_{1/2}\\to 5{\\rm P}_{3/2}$ transition in rubidium. Using a slightly modified experimental setup, Doppler-free two-photon absorption spectroscopy is then performed on the $5{\\rm S}_{1/2}\\to 5{\\rm D}_{5/2}$ transition in rubidium, leading to accurate measurements of the hyperfine structure of the $5{\\rm D}_{5/2}$ energy level. In addition, electric dipole selectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.3115","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":"0902.3115","created_at":"2026-05-18T02:14:47.175426+00:00"},{"alias_kind":"arxiv_version","alias_value":"0902.3115v1","created_at":"2026-05-18T02:14:47.175426+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.3115","created_at":"2026-05-18T02:14:47.175426+00:00"},{"alias_kind":"pith_short_12","alias_value":"CTROGCQ7HF6Z","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_16","alias_value":"CTROGCQ7HF6ZPXB6","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_8","alias_value":"CTROGCQ7","created_at":"2026-05-18T12:25:59.703012+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/CTROGCQ7HF6ZPXB6KXJZZZSUHA","json":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA.json","graph_json":"https://pith.science/api/pith-number/CTROGCQ7HF6ZPXB6KXJZZZSUHA/graph.json","events_json":"https://pith.science/api/pith-number/CTROGCQ7HF6ZPXB6KXJZZZSUHA/events.json","paper":"https://pith.science/paper/CTROGCQ7"},"agent_actions":{"view_html":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA","download_json":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA.json","view_paper":"https://pith.science/paper/CTROGCQ7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0902.3115&json=true","fetch_graph":"https://pith.science/api/pith-number/CTROGCQ7HF6ZPXB6KXJZZZSUHA/graph.json","fetch_events":"https://pith.science/api/pith-number/CTROGCQ7HF6ZPXB6KXJZZZSUHA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA/action/storage_attestation","attest_author":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA/action/author_attestation","sign_citation":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA/action/citation_signature","submit_replication":"https://pith.science/pith/CTROGCQ7HF6ZPXB6KXJZZZSUHA/action/replication_record"}},"created_at":"2026-05-18T02:14:47.175426+00:00","updated_at":"2026-05-18T02:14:47.175426+00:00"}