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For RTP/KTP our coefficients of linear thermal expansion at 305 K are: $\\alpha_x=9.44/7.88\\times 10^{-6}$/K, $\\alpha_y=12.49/9.48\\times 10^{-6}$/K, $\\alpha_z=-4.16/0.02\\times 10^{-6}$/K. Our normalized thermo-optic coefficients $\\beta=(1/n)dn/dT$ at 632.8 nm and 305 K are: $\\beta_x=5.39/3.78\\times 10^{-6}$/K, $\\beta_y=7.11/5.24\\times 10^{-6}$/K, $\\beta_z=12.35/9.34\\times 10^{-6}$/K."},"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":"1607.03964","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-14T00:05:04Z","cross_cats_sorted":[],"title_canon_sha256":"1886cb02260dcf81e7a33e227fdb514e8624201c4c427a9606870cf1fbe0484e","abstract_canon_sha256":"3ae5d687c05ee745ac0fee5e574221c0377418b2e373dc36f5b42aff2637787e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:04.436677Z","signature_b64":"7CQkyhOwna5u/k2KC0SzWGBtZiGMknfF0szVoHmoKW4Y1sXPXnzq9eMogv19h7rFEHeCleplXcHJj8dLkaDeBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3181e092013dc15a9d9ce00d18e8ae38ff257a68144a244ee34670fb69ce1400","last_reissued_at":"2026-05-18T01:11:04.436095Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:04.436095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Thermo-optic and thermal expansion coefficients of RTP and KTP crystals over 300-350 K","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Arlee V. Smith, Binh T. Do, Jesse J. Smith","submitted_at":"2016-07-14T00:05:04Z","abstract_excerpt":"We report new measurements of the thermal expansion and thermo-optic coefficients of RbTiOPO$_4$ (RTP) and KTiOPO$_4$ (KTP) crystals over the temperature range 300-350 K. For RTP/KTP our coefficients of linear thermal expansion at 305 K are: $\\alpha_x=9.44/7.88\\times 10^{-6}$/K, $\\alpha_y=12.49/9.48\\times 10^{-6}$/K, $\\alpha_z=-4.16/0.02\\times 10^{-6}$/K. Our normalized thermo-optic coefficients $\\beta=(1/n)dn/dT$ at 632.8 nm and 305 K are: $\\beta_x=5.39/3.78\\times 10^{-6}$/K, $\\beta_y=7.11/5.24\\times 10^{-6}$/K, $\\beta_z=12.35/9.34\\times 10^{-6}$/K."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.03964","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":"1607.03964","created_at":"2026-05-18T01:11:04.436298+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.03964v1","created_at":"2026-05-18T01:11:04.436298+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.03964","created_at":"2026-05-18T01:11:04.436298+00:00"},{"alias_kind":"pith_short_12","alias_value":"GGA6BEQBHXAV","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_16","alias_value":"GGA6BEQBHXAVVHM4","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_8","alias_value":"GGA6BEQB","created_at":"2026-05-18T12:30:19.053100+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.00216","citing_title":"Phase-Sensitive Crystal-Edge Effects in Linear Optical Parametric Oscillators: Why Nominally Identical Squeezers Behave Differently","ref_index":28,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD","json":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD.json","graph_json":"https://pith.science/api/pith-number/GGA6BEQBHXAVVHM44AGRR2FOHD/graph.json","events_json":"https://pith.science/api/pith-number/GGA6BEQBHXAVVHM44AGRR2FOHD/events.json","paper":"https://pith.science/paper/GGA6BEQB"},"agent_actions":{"view_html":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD","download_json":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD.json","view_paper":"https://pith.science/paper/GGA6BEQB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.03964&json=true","fetch_graph":"https://pith.science/api/pith-number/GGA6BEQBHXAVVHM44AGRR2FOHD/graph.json","fetch_events":"https://pith.science/api/pith-number/GGA6BEQBHXAVVHM44AGRR2FOHD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD/action/storage_attestation","attest_author":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD/action/author_attestation","sign_citation":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD/action/citation_signature","submit_replication":"https://pith.science/pith/GGA6BEQBHXAVVHM44AGRR2FOHD/action/replication_record"}},"created_at":"2026-05-18T01:11:04.436298+00:00","updated_at":"2026-05-18T01:11:04.436298+00:00"}