Flexible electro-optic, single-crystal difference frequency generation architecture for ultrafast mid-infrared dual-comb spectroscopy

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dc.contributor.author Jerez González, Borja
dc.contributor.author Martín Mateos, Pedro
dc.contributor.author Walla, Frederik William
dc.contributor.author Dios Fernández, Cristina de
dc.contributor.author Acedo Gallardo, Pablo
dc.date.accessioned 2020-11-17T13:59:29Z
dc.date.available 2020-11-17T13:59:29Z
dc.date.issued 2018-06-20
dc.identifier.bibliographicCitation ACS Photonics, 5(6), June 2018, Pp. 2348−2353
dc.identifier.issn 2330-4022
dc.identifier.uri http://hdl.handle.net/10016/31435
dc.description.abstract Crowded with the fundamental signatures of many popular molecules, the mid-infrared range of the electromagnetic spectrum is particularly attractive for applications ranging from identification of transient phenomena to sensing of trace gases. Dual-comb spectroscopy is a technique that unveils the potential to access this region with a pair of phase-locked optical frequency combs on a high-resolution, real-time basis without the mechanical limitations of traditional spectrometers. As the ideal characteristics of an optical frequency comb are strongly influenced by the target application, electro-optic dual-comb systems are one of the most promising solutions with full capabilities to neatly fit to the application of interest beyond laboratory environments. Parameters such as resolution, measurement speed, or central wavelength are easily adjustable by means of compact, low-cost arrangements based on commercial off-the-shelf components. To fully exploit their potential for molecular spectroscopy, we present here a modular instrument designed to perform ultrafast dual-comb spectroscopy in the mid-infrared region. The architecture comprises a fiberized near-infrared electro-optic dual-comb scheme and a single-crystal difference frequency generation module to generate mid-infrared combs, thus significantly alleviating the complexity of the free-space setup while preserving absolute independence between the instrument and the sample of study. The feasibility of the instrument is successfully validated by recovering the absorption profile of methane at 2896.98 cm-1 within tens of microseconds.
dc.description.sponsorship The authors would like to thank the Spanish Ministry of Economy and Competitiveness for supporting the project under the grant TEC-2014-52147-R (MOSSI). The work by B.J. has been performed in the frame of an FPU Program, #FPU014/06338, granted by the Spanish Ministry of Education, Culture and Sports. The work by F.W. is supported by the Europeanproject H2020-MSCA-ITN-2015 (CELTA).
dc.format.extent 6
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights © 2018 American Chemical Society
dc.subject.other Mid-infrared dual-comb spectroscopy
dc.subject.other Difference frequency generation
dc.subject.other Electro-optic optical frequency combs
dc.subject.other Optical gas analysis
dc.subject.other Absorption spectroscopy
dc.subject.other Real-time measurements
dc.subject.other Multiheterodyne detection
dc.subject.other MgO:PPLN crystals
dc.title Flexible electro-optic, single-crystal difference frequency generation architecture for ultrafast mid-infrared dual-comb spectroscopy
dc.type article
dc.subject.eciencia Electrónica
dc.identifier.doi https://doi.org/10.1021/acsphotonics.8b00143
dc.rights.accessRights openAccess
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/675683/CELTA
dc.relation.projectID Gobierno de España. TEC-2014-52147-R/MOSSI
dc.relation.projectID Gobierno de España. FPU014/06338
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 2348
dc.identifier.publicationissue 6
dc.identifier.publicationlastpage 2353
dc.identifier.publicationtitle ACS Photonics
dc.identifier.publicationvolume 5
dc.identifier.uxxi AR/0000021674
dc.contributor.funder European Commission
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.contributor.funder Ministerio de Educación, Cultura y Deporte (España)
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