Scientific Results

Comb-referenced ultra-high sensitivity spectroscopic molecular detection by compact non-linear sources

Year: 2017

Authors: Cancio P., Gagliardi G., Galli I., Giusfredi G., Maddaloni P., Malara P., Mazzotti D., De Natale P.

Autors Affiliation: CNR, Istituto Nazionale di Ottica Applicata, Largo Fermi 6, Firenze FI, 50125, Italy; LENS, Via Carrara 1, Sesto Fiorentino FI, 50019, Italy; CNR, Istituto Nazionale di Ottica Applicata, LENS, Via Campi Flegrei 34, Pozzuoli NA, 80078, Italy

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More Information: We thank M. Prevedelli (University of Bologna, Italy) for developing the phase-lock electronics, L. Lorini (INRIM, Italy) for the calibration of the frequency reference and R. Ballerini (LENS, Italy) for making the optical cavity operating at 4.5 µm. This research was supported by the Italian Ministry for Education, University and Research within the frameworks of FIRB project RBNE01KZ94 and PON project S.I.MON.A. This work is also part of the Regional Center of Competence project “Analysis and Monitoring of the Environmental Risk” supported by the European Union on Provision 3.16.
KeyWords: Gas detectors; Natural frequencies; Optical materials, Difference frequency; Difference-frequency generation; Gas sensing; High finesse optical cavities; Molecular detection; Optical frequency combs; Trace gas monitoring; Ultra-high-sensitivity, Optical frequency conversion

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