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dc.contributor.authorLamperti, Marco
dc.contributor.authorGotti, Riccardo
dc.contributor.authorGatti, Davide
dc.contributor.authorShakfa, Mohammad Khaled
dc.contributor.authorCané, E.
dc.contributor.authorTamassia, F.
dc.contributor.authorSchunemann, P.
dc.contributor.authorLaporta, P.
dc.contributor.authorFarooq, Aamir
dc.contributor.authorMarangoni, M.
dc.date.accessioned2020-10-11T11:02:54Z
dc.date.available2020-10-11T11:02:54Z
dc.date.issued2020-10-06
dc.date.submitted220-02-28
dc.identifier.citationLamperti, M., Gotti, R., Gatti, D., Shakfa, M. K., Cané, E., Tamassia, F., … Marangoni, M. (2020). Optical frequency metrology in the bending modes region. Communications Physics, 3(1). doi:10.1038/s42005-020-00441-y
dc.identifier.issn2399-3650
dc.identifier.doi10.1038/s42005-020-00441-y
dc.identifier.urihttp://hdl.handle.net/10754/665524
dc.description.abstractAbstract Optical metrology and high-resolution spectroscopy, despite impressive progress across diverse regions of the electromagnetic spectrum from ultraviolet to terahertz frequencies, are still severely limited in the region of vibrational bending modes from 13 to 20 µm. This long-wavelength part of the mid-infrared range remains largely unexplored due to the lack of tunable single-mode lasers. Here, we demonstrate bending modes frequency metrology in this region by employing a continuous-wave nonlinear laser source with tunability from 12.1 to 14.8 µm, optical power up to 110 µW, MHz-level linewidth and comb calibration. We assess several CO2-based frequency benchmarks with uncertainties down to 30 kHz and we provide an extensive study of the v11 band of benzene, a significant testbed for the resolution of the spectrometer. These achievements pave the way for long-wavelength infrared metrology, rotationally-resolved studies and astronomic observations of large molecules such as aromatic hydrocarbons.
dc.description.sponsorshipThe authors acknowledge a financial contribution from the cooperative project OSR-2019-CCF-1975.34 between Politecnico di Milano and King Abdullah University of Science and Technology (KAUST) and by the project EMPATIA@Lecco ID: 2016-1428. F.T. and E.C. thank the University of Bologna for RFO funds.
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/s42005-020-00441-y
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleOptical frequency metrology in the bending modes region
dc.typeArticle
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratory
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalCommunications Physics
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDipartimento di Fisica—Politecnico di Milano and IFN-CNR, Via Gaetano Previati 1/C, 23900, Lecco, Italy
dc.contributor.institutionUniversità di Bologna, Dipartimento di Chimica Industriale, Viale del Risorgimento 4, 40136, Bologna, Italy
dc.contributor.institutionBAE Systems, Inc., MER15-1813, P.O. Box 868, Nashua, NH, 03061-0868, USA
dc.identifier.volume3
dc.identifier.issue1
kaust.personShakfa, M. K.
kaust.personFarooq, Aamir
dc.date.accepted2020-08-27
dc.identifier.eid2-s2.0-85091980740
refterms.dateFOA2020-10-11T11:03:37Z
kaust.acknowledged.supportUnitCCF
kaust.acknowledged.supportUnitOSR
dc.date.published-online2020-10-06
dc.date.published-print2020-12


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder