{"id":"https://openalex.org/W7225424864","doi":"https://doi.org/10.21203/rs.3.rs-11310219/v1","title":"Spectral fits with full broadening for kHz-iteration high-accuracy gas-phase spectroscopy","display_name":"Spectral fits with full broadening for kHz-iteration high-accuracy gas-phase spectroscopy","publication_year":2026,"publication_date":"2026-11-06","ids":{"openalex":"https://openalex.org/W7225424864","doi":"https://doi.org/10.21203/rs.3.rs-11310219/v1"},"language":"en","primary_location":{"id":"doi:10.21203/rs.3.rs-11310219/v1","doi":"https://doi.org/10.21203/rs.3.rs-11310219/v1","is_oa":true,"landing_page_url":"https://doi.org/10.21203/rs.3.rs-11310219/v1","pdf_url":"https://www.researchsquare.com/article/rs-11310219/latest.pdf","source":{"id":"https://openalex.org/S4306525896","display_name":"Research Square","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Square","raw_type":"posted-content"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://www.researchsquare.com/article/rs-11310219/latest.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5046013166","display_name":"Stephen So","orcid":"https://orcid.org/0009-0008-4682-1898","observed_orcids":["https://orcid.org/0009-0008-4682-1898"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Stephen G. So","raw_affiliation_strings":["SoPhotonics Inc"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SoPhotonics Inc","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5046013166"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11111","display_name":"Spectroscopy and Laser Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11111","display_name":"Spectroscopy and Laser Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10640","display_name":"Spectroscopy and Chemometric Analyses","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12304","display_name":"Radiative Heat Transfer Studies","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/direct-absorption-spectroscopy","display_name":"direct absorption spectroscopy","score":0.7879999876022339},{"id":"https://openalex.org/keywords/effective-pressure","display_name":"effective pressure","score":0.7559999823570251},{"id":"https://openalex.org/keywords/taguchi-orthogonal-array","display_name":"Taguchi orthogonal array","score":0.9470000267028809},{"id":"https://openalex.org/keywords/embedded-systems","display_name":"embedded systems","score":0.6489999890327454},{"id":"https://openalex.org/keywords/atmospheric-sensing","display_name":"atmospheric sensing","score":0.8600000143051147},{"id":"https://openalex.org/keywords/reaction-kinetics","display_name":"reaction kinetics","score":0.5270000100135803}],"concepts":[{"id":"https://openalex.org/C2776032251","wikidata":"https://www.wikidata.org/wiki/Q5629801","display_name":"HITRAN","level":3,"score":0.6665999889373779},{"id":"https://openalex.org/C2778770139","wikidata":"https://www.wikidata.org/wiki/Q1966904","display_name":"Solver","level":2,"score":0.6035000085830688},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.5166000127792358},{"id":"https://openalex.org/C155512373","wikidata":"https://www.wikidata.org/wiki/Q287450","display_name":"Residual","level":2,"score":0.5067999958992004},{"id":"https://openalex.org/C159379195","wikidata":"https://www.wikidata.org/wiki/Q7239568","display_name":"Precomputation","level":3,"score":0.503600001335144},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.49869999289512634},{"id":"https://openalex.org/C169268690","wikidata":"https://www.wikidata.org/wiki/Q1359945","display_name":"Fabry\u2013P\u00e9rot interferometer","level":3,"score":0.46869999170303345},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.450300008058548},{"id":"https://openalex.org/C204787275","wikidata":"https://www.wikidata.org/wiki/Q17162938","display_name":"Spectral line shape","level":3,"score":0.45019999146461487},{"id":"https://openalex.org/C62103226","wikidata":"https://www.wikidata.org/wiki/Q902598","display_name":"Doppler broadening","level":3,"score":0.41609999537467957},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.39259999990463257},{"id":"https://openalex.org/C103324678","wikidata":"https://www.wikidata.org/wiki/Q592333","display_name":"Tunable diode laser absorption spectroscopy","level":4,"score":0.37709999084472656},{"id":"https://openalex.org/C125287762","wikidata":"https://www.wikidata.org/wiki/Q1758948","display_name":"Absorption (acoustics)","level":2,"score":0.3646000027656555},{"id":"https://openalex.org/C119824511","wikidata":"https://www.wikidata.org/wiki/Q13553575","display_name":"Absorption spectroscopy","level":2,"score":0.36399999260902405},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.3634999990463257},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.3612000048160553},{"id":"https://openalex.org/C32891209","wikidata":"https://www.wikidata.org/wiki/Q483666","display_name":"Spectroscopy","level":2,"score":0.3605000078678131},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.3222000002861023},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3203999996185303},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.31700000166893005},{"id":"https://openalex.org/C119256216","wikidata":"https://www.wikidata.org/wiki/Q913012","display_name":"Lanczos resampling","level":3,"score":0.31520000100135803},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3095000088214874},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.3000999987125397},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2971000075340271},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.28780001401901245},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.2833000123500824},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.28049999475479126},{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.2678999900817871},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.2662000060081482},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.2615000009536743},{"id":"https://openalex.org/C184389593","wikidata":"https://www.wikidata.org/wiki/Q603159","display_name":"Curve fitting","level":2,"score":0.25619998574256897},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.2549999952316284},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.25360000133514404},{"id":"https://openalex.org/C79518650","wikidata":"https://www.wikidata.org/wiki/Q2081431","display_name":"Integrator","level":3,"score":0.25099998712539673}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.21203/rs.3.rs-11310219/v1","doi":"https://doi.org/10.21203/rs.3.rs-11310219/v1","is_oa":true,"landing_page_url":"https://doi.org/10.21203/rs.3.rs-11310219/v1","pdf_url":"https://www.researchsquare.com/article/rs-11310219/latest.pdf","source":{"id":"https://openalex.org/S4306525896","display_name":"Research Square","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Square","raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.21203/rs.3.rs-11310219/v1","doi":"https://doi.org/10.21203/rs.3.rs-11310219/v1","is_oa":true,"landing_page_url":"https://doi.org/10.21203/rs.3.rs-11310219/v1","pdf_url":"https://www.researchsquare.com/article/rs-11310219/latest.pdf","source":{"id":"https://openalex.org/S4306525896","display_name":"Research Square","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Square","raw_type":"posted-content"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7225424864.pdf","grobid_xml":"https://content.openalex.org/works/W7225424864.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2049007589","https://openalex.org/W2274061575","https://openalex.org/W1779163725","https://openalex.org/W4386428021","https://openalex.org/W7009878709","https://openalex.org/W4411090464","https://openalex.org/W4394590194","https://openalex.org/W2043613426","https://openalex.org/W1508038015","https://openalex.org/W2361115517"],"abstract_inverted_index":{"Abstract":[0],"This":[1,106],"work":[2,107],"presents":[3],"methods":[4,78],"enabling":[5],"real-time":[6],"multi-species":[7],"direct":[8],"absorption":[9,40],"spectroscopic":[10],"fitting":[11,70,119],"at":[12,94,123],"kilohertz":[13],"iteration":[14],"rates":[15],"with":[16,42,64,86],"high":[17,34],"accuracy":[18,35],"of":[19,27,37],"spectral":[20,117],"line":[21],"shapes":[22],"on":[23],"embedded":[24],"systems.":[25],"Precomputation":[26],"multi-dimensional":[28],"polynomials":[29],"and":[30,46,55,72,91,138,148],"effective":[31],"pressures":[32],"allows":[33],"approximation":[36],"HITRAN":[38],"Hartmann-Tran":[39],"coefficients":[41],"full":[43],"matrix":[44],"broadening":[45],"low":[47],"residual":[48],"error,":[49],"replacing":[50],"computationally":[51],"slow":[52],"line-by-line":[53],"simulations":[54,132],"inaccurate":[56],"fixed-basis":[57],"functions.":[58],"A":[59],"novel":[60],"Levenberg--Marquardt":[61],"solver":[62],"augmented":[63],"Taguchi":[65],"orthogonal":[66],"array":[67],"exploration":[68],"accelerates":[69],"convergence":[71],"escapes":[73],"local":[74],"minima.":[75],"Together,":[76],"these":[77],"enable":[79],"simulated":[80,98,127],"implementations":[81],"that":[82],"fit":[83],"1000-point":[84],"spectra":[85],"simultaneous":[87,111],"etalon":[88],"fringe,":[89],"temperature,":[90],"pressure":[92],"estimation":[93],"1~kHz":[95],"using":[96,125],"0.8~W":[97],"computational":[99,128],"power":[100],"for":[101,143],"a":[102,110],"single":[103],"laser":[104],"system.":[105],"further":[108],"simulates":[109],"dual-laser":[112],"single-detector":[113],"architecture":[114],"exploiting":[115],"co-prime":[116],"lengths,":[118],"six":[120],"concentration":[121],"parameters":[122],"0.82~kHz":[124],"1.6~W":[126],"power.":[129],"Mid-infrared":[130],"TDLAS":[131],"targeting":[133],"CH4,":[134],"H2O,":[135],"C2H6,":[136],"CO2,":[137],"N2O":[139],"provide":[140],"an":[141],"approach":[142],"possible":[144],"atmospheric":[145],"sensing":[146],"deployments":[147],"chemical":[149],"kinetics":[150],"studies.":[151]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-11-07T00:00:00"}
