{"id":"https://openalex.org/W4212954878","doi":"https://doi.org/10.3390/s22041549","title":"Non-Contact Paper Thickness and Quality Monitoring Based on Mid-Infrared Optical Coherence Tomography and THz Time Domain Spectroscopy","display_name":"Non-Contact Paper Thickness and Quality Monitoring Based on Mid-Infrared Optical Coherence Tomography and THz Time Domain Spectroscopy","publication_year":2022,"publication_date":"2022-02-17","ids":{"openalex":"https://openalex.org/W4212954878","doi":"https://doi.org/10.3390/s22041549","pmid":"https://pubmed.ncbi.nlm.nih.gov/35214449"},"language":"en","primary_location":{"id":"doi:10.3390/s22041549","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22041549","pdf_url":"https://www.mdpi.com/1424-8220/22/4/1549/pdf?version=1645088579","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/22/4/1549/pdf?version=1645088579","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064980923","display_name":"Rasmus E. Hansen","orcid":"https://orcid.org/0000-0001-8545-5765"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Rasmus Eilk\u00e6r Hansen","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067312804","display_name":"Thorsten B\u00e6k","orcid":"https://orcid.org/0000-0001-5272-7031"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Thorsten B\u00e6k","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009258662","display_name":"Simon Jappe Lange","orcid":"https://orcid.org/0000-0002-9456-9331"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Simon Lehnskov Lange","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076517412","display_name":"Niels M\u00f8ller Israelsen","orcid":"https://orcid.org/0000-0001-9632-7902"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Niels M\u00f8ller Israelsen","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]},{"raw_affiliation_string":"NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029713371","display_name":"Markku M\u00e4ntyl\u00e4","orcid":null},"institutions":[{"id":"https://openalex.org/I4210138253","display_name":"Valmet (Finland)","ror":"https://ror.org/03eaa3f03","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210138253"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Markku M\u00e4ntyl\u00e4","raw_affiliation_strings":["Valmet Oyj, Keilasatama 5, FI-02150 Espoo, Finland"],"affiliations":[{"raw_affiliation_string":"Valmet Oyj, Keilasatama 5, FI-02150 Espoo, Finland","institution_ids":["https://openalex.org/I4210138253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038224948","display_name":"Ole Bang","orcid":"https://orcid.org/0000-0002-8041-9156"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Ole Bang","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]},{"raw_affiliation_string":"NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005148001","display_name":"Christian Petersen","orcid":"https://orcid.org/0000-0002-2883-7908"},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":true,"raw_author_name":"Christian Rosenberg Petersen","raw_affiliation_strings":["DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark"],"affiliations":[{"raw_affiliation_string":"DTU Fotonik, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]},{"raw_affiliation_string":"NORBLIS ApS, Virumgade 35 D, 2830 Virum, Denmark","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5005148001"],"corresponding_institution_ids":["https://openalex.org/I96673099"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":2.8241,"has_fulltext":true,"cited_by_count":19,"citation_normalized_percentile":{"value":0.89973278,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"22","issue":"4","first_page":"1549","last_page":"1549"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13049","display_name":"Surface Roughness and Optical Measurements","score":0.9914000034332275,"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"}},"topics":[{"id":"https://openalex.org/T13049","display_name":"Surface Roughness and Optical Measurements","score":0.9914000034332275,"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"}},{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.982699990272522,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","score":0.9776999950408936,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"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/optical-coherence-tomography","display_name":"Optical coherence tomography","score":0.8282883167266846},{"id":"https://openalex.org/keywords/terahertz-radiation","display_name":"Terahertz radiation","score":0.6973521709442139},{"id":"https://openalex.org/keywords/infrared","display_name":"Infrared","score":0.5999670028686523},{"id":"https://openalex.org/keywords/spectroscopy","display_name":"Spectroscopy","score":0.5646389126777649},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.5439645051956177},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.5304080247879028},{"id":"https://openalex.org/keywords/time-domain","display_name":"Time domain","score":0.480686753988266},{"id":"https://openalex.org/keywords/coherence","display_name":"Coherence (philosophical gambling strategy)","score":0.4531148672103882},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.4491245746612549},{"id":"https://openalex.org/keywords/terahertz-spectroscopy-and-technology","display_name":"Terahertz spectroscopy and technology","score":0.42335790395736694},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.41861891746520996},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.28087925910949707},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.24322789907455444},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.07074660062789917}],"concepts":[{"id":"https://openalex.org/C2778818243","wikidata":"https://www.wikidata.org/wiki/Q899552","display_name":"Optical coherence tomography","level":2,"score":0.8282883167266846},{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.6973521709442139},{"id":"https://openalex.org/C158355884","wikidata":"https://www.wikidata.org/wiki/Q11388","display_name":"Infrared","level":2,"score":0.5999670028686523},{"id":"https://openalex.org/C32891209","wikidata":"https://www.wikidata.org/wiki/Q483666","display_name":"Spectroscopy","level":2,"score":0.5646389126777649},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5439645051956177},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5304080247879028},{"id":"https://openalex.org/C103824480","wikidata":"https://www.wikidata.org/wiki/Q185889","display_name":"Time domain","level":2,"score":0.480686753988266},{"id":"https://openalex.org/C2781181686","wikidata":"https://www.wikidata.org/wiki/Q4226068","display_name":"Coherence (philosophical gambling strategy)","level":2,"score":0.4531148672103882},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.4491245746612549},{"id":"https://openalex.org/C77887725","wikidata":"https://www.wikidata.org/wiki/Q17157147","display_name":"Terahertz spectroscopy and technology","level":3,"score":0.42335790395736694},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.41861891746520996},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.28087925910949707},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.24322789907455444},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.07074660062789917},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D013057","descriptor_name":"Spectrum Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013057","descriptor_name":"Spectrum Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013057","descriptor_name":"Spectrum Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D041623","descriptor_name":"Tomography, Optical Coherence","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D041623","descriptor_name":"Tomography, Optical Coherence","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D041623","descriptor_name":"Tomography, Optical Coherence","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D055068","descriptor_name":"Terahertz Spectroscopy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D055068","descriptor_name":"Terahertz Spectroscopy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D055068","descriptor_name":"Terahertz Spectroscopy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":6,"locations":[{"id":"doi:10.3390/s22041549","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22041549","pdf_url":"https://www.mdpi.com/1424-8220/22/4/1549/pdf?version=1645088579","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:35214449","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/35214449","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:6c82d3aff5b748dfb67e300a796cf5b5","is_oa":true,"landing_page_url":"https://doaj.org/article/6c82d3aff5b748dfb67e300a796cf5b5","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 22, Iss 4, p 1549 (2022)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/22/4/1549/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s22041549","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"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":"Sensors; Volume 22; Issue 4; Pages: 1549","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8877368","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8877368","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"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":"Sensors (Basel)","raw_type":"Text"},{"id":"pmh:oai:pure.atira.dk:publications/38057f09-9302-4099-b363-68a3cb084f41","is_oa":true,"landing_page_url":"https://orbit.dtu.dk/en/publications/38057f09-9302-4099-b363-68a3cb084f41","pdf_url":null,"source":{"id":"https://openalex.org/S4306400705","display_name":"Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I96673099","host_organization_name":"Technical University of Denmark","host_organization_lineage":["https://openalex.org/I96673099"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Hansen , R E , B\u00e6k , T , Lange , S L , Israelsen , N M , M\u00e4ntyl\u00e4 , M , Bang , O & Petersen , C R 2022 , ' Non-Contact Paper Thickness and Quality Monitoring Based on Mid-Infrared Optical Coherence Tomography and THz Time Domain Spectroscopy ' , Sensors , vol. 22 , no. 4 , 1549 . https://doi.org/10.3390/s22041549","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/s22041549","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22041549","pdf_url":"https://www.mdpi.com/1424-8220/22/4/1549/pdf?version=1645088579","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.5799999833106995}],"awards":[],"funders":[{"id":"https://openalex.org/F4320310490","display_name":"Villum Fonden","ror":"https://ror.org/007ww2d15"},{"id":"https://openalex.org/F4320323153","display_name":"Danmarks Tekniske Universitet","ror":"https://ror.org/04qtj9h94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4212954878.pdf","grobid_xml":"https://content.openalex.org/works/W4212954878.grobid-xml"},"referenced_works_count":23,"referenced_works":["https://openalex.org/W1970051180","https://openalex.org/W1977931165","https://openalex.org/W1979764041","https://openalex.org/W1990155272","https://openalex.org/W2055868840","https://openalex.org/W2067922106","https://openalex.org/W2080309354","https://openalex.org/W2120696652","https://openalex.org/W2161084728","https://openalex.org/W2170682429","https://openalex.org/W2618943565","https://openalex.org/W2783915316","https://openalex.org/W2897340379","https://openalex.org/W2969286673","https://openalex.org/W2996480135","https://openalex.org/W2999675010","https://openalex.org/W3126291295","https://openalex.org/W3168108286","https://openalex.org/W3186784122","https://openalex.org/W3194341669","https://openalex.org/W4387863383","https://openalex.org/W4392439093","https://openalex.org/W6858003367"],"related_works":["https://openalex.org/W2033532584","https://openalex.org/W2087227458","https://openalex.org/W2471738782","https://openalex.org/W2808347648","https://openalex.org/W2899870984","https://openalex.org/W2811462147","https://openalex.org/W2367871797","https://openalex.org/W2061199803","https://openalex.org/W1988901865","https://openalex.org/W2034591461"],"abstract_inverted_index":{"In":[0,31],"industrial":[1,135],"paper":[2,45,103,117],"production,":[3],"online":[4],"monitoring":[5],"of":[6,9,21,44,80,105,129],"a":[7,28,61],"range":[8],"quality":[10,137],"parameters":[11],"is":[12,25,55,93,99],"essential":[13],"for":[14,27,40],"ensuring":[15],"that":[16],"the":[17,22,76,124],"performance":[18],"and":[19,49,72,84,127],"appearance":[20],"final":[23],"product":[24],"suitable":[26],"given":[29],"application.":[30],"this":[32],"article,":[33],"two":[34],"optical":[35,56,131],"sensing":[36,132],"techniques":[37],"are":[38],"investigated":[39],"non-destructive,":[41],"non-contact":[42,136],"characterization":[43],"thickness,":[46],"surface":[47,77],"roughness,":[48],"production":[50],"defects.":[51],"The":[52,90],"first":[53],"technique":[54,92],"coherence":[57],"tomography":[58],"based":[59],"on":[60],"mid-infrared":[62],"supercontinuum":[63],"laser,":[64],"which":[65,98],"can":[66],"cover":[67],"thicknesses":[68,104],"from":[69],"~20-90":[70],"\u03bcm":[71],"provide":[73],"information":[74],"about":[75],"finish.":[78],"Detection":[79],"subsurface":[81],"voids,":[82],"cuts,":[83],"oil":[85],"contamination":[86],"was":[87,118],"also":[88,119],"demonstrated.":[89,120],"second":[91],"terahertz":[94],"time":[95],"domain":[96],"spectroscopy,":[97],"used":[100],"to":[101,107],"measure":[102],"up":[106],"443":[108],"\u03bcm.":[109],"A":[110],"proof-of-concept":[111],"thickness":[112],"measurement":[113],"in":[114],"freely":[115],"suspended":[116],"These":[121],"demonstrations":[122],"highlight":[123],"added":[125],"functionality":[126],"potential":[128],"tomographic":[130],"methods":[133],"towards":[134],"monitoring.":[138]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}