{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T20:30:11Z","timestamp":1791405011204,"version":"4.3.3"},"reference-count":33,"publisher":"Optica Publishing Group","issue":"19","license":[{"start":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T00:00:00Z","timestamp":1781654400000},"content-version":"am","delay-in-days":365,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#AM"},{"start":{"date-parts":[[2025,6,17]],"date-time":"2025-06-17T00:00:00Z","timestamp":1750118400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/100006234","name":"Sandia National\n\t\t\t\t\t\tLaboratories","doi-asserted-by":"publisher","award":["DE-NA0003525"],"award-info":[{"award-number":["DE-NA0003525"]}],"id":[{"id":"10.13039\/100006234","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Appl. Opt."],"published-print":{"date-parts":[[2025,7,1]]},"abstract":"<jats:p>\n                    This work presents laser absorption-based pressure measurements in a\n\t\t\t\t\tsimulated post-detonation environment to experimentally study the\n\t\t\t\t\tdynamic range, accuracy, and sensitivity of optically measured gas\n\t\t\t\t\tpressures in dynamic flow fields. Experiments were conducted in Sandia\n\t\t\t\t\tNational Laboratories\u2019 Multiphase and High-Temperature Shock Tubes\n\t\t\t\t\tusing a micro-electromechanical system, tunable vertical cavity\n\t\t\t\t\tsurface emitting laser (MEMS-VCSEL) scanning 7350\u22127900cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 100\u00a0kHz to measure water\n\t\t\t\t\tvapor absorption spectra at pressures ranging from 0.25 to\n\t\t\t\t\t67\u00a0atm and temperatures from 293 to 2300\u00a0K. Temperatures\n\t\t\t\t\tand pressures were inferred from the spectra in bath-gas mixtures of\n\t\t\t\t\tair, water vapor, and carbon dioxide to simulate broadening effects\n\t\t\t\t\tfrom the primary collision partners in post-detonation environments.\n\t\t\t\t\tIn addition, partner-specific collisional broadening parameters from\n\t\t\t\t\ttwo different spectroscopic databases were evaluated under these\n\t\t\t\t\tconditions to understand the implications of data source selection on\n\t\t\t\t\tan engineering measurement. Across all conditions, laser\n\t\t\t\t\tabsorption-based temperatures were on average within 2.6% of predicted\n\t\t\t\t\tvalues (RMSE of 71\u00a0K), and pressures were on average within\n\t\t\t\t\t5.4% of sensor values (RMSE of 3.8\u00a0atm) for both databases.\n\t\t\t\t\tNumerical experiments based on synthetic spectra of simulated\n\t\t\t\t\tpost-detonation gas mixtures suggest the pressure diagnostic to be\n\t\t\t\t\taccurate within 10% across a range of typical post-detonation\n\t\t\t\t\tconditions in cases when simplifying broadening assumptions regarding\n\t\t\t\t\tbath-gas collision partners are invoked.\n                  <\/jats:p>","DOI":"10.1364\/ao.565234","type":"journal-article","created":{"date-parts":[[2025,5,29]],"date-time":"2025-05-29T12:00:08Z","timestamp":1748520008000},"page":"5279","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Pressure measurements via water vapor absorption spectroscopy for application to post-detonation environments"],"prefix":"10.1364","volume":"64","author":[{"given":"I. C.","family":"Gessman","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047426m28","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Engineering Sciences Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. M.","family":"Murzyn","sequence":"additional","affiliation":[{"name":"Engineering Sciences Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William E.","family":"Swain","sequence":"additional","affiliation":[{"name":"Engineering Sciences Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2464-5316","authenticated-orcid":true,"given":"K. A.","family":"Daniel","sequence":"additional","affiliation":[{"name":"Engineering Sciences Center"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2025,6,17]]},"reference":[{"key":"ao-64-19-5279-R1","doi-asserted-by":"publisher","first-page":"013101","DOI":"10.1063\/5.0182325","volume":"135","author":"Murzyn","year":"2024","journal-title":"J. Appl.\n\t\t\t\t\tPhys."},{"key":"ao-64-19-5279-R2","doi-asserted-by":"publisher","first-page":"1598","DOI":"10.1364\/AO.479882","volume":"62","author":"Schwartz","year":"2023","journal-title":"Appl. Opt."},{"key":"ao-64-19-5279-R3","doi-asserted-by":"publisher","first-page":"186","DOI":"10.1016\/j.optlaseng.2018.06.005","volume":"110","author":"Murzyn","year":"2018","journal-title":"Opt. Lasers Eng."},{"key":"ao-64-19-5279-R4","doi-asserted-by":"publisher","first-page":"1259","DOI":"10.1016\/j.proci.2022.08.115","volume":"39","author":"Mathews","year":"2023","journal-title":"Proc. Combust. 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All rights, including\n\t\t\t\t\tfor text and data mining (TDM), Artificial Intelligence (AI) training,\n\t\t\t\t\tand similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}