Metrological-grade tunable coherent source in the mid-infrared for molecular precision spectroscopy

G. Insero, C. Clivati, D. D'Ambrosio, P. Cancio Pastor, M. Verde, P. G. Schunemann, J. J. Zondy, M. Inguscio, D. Calonico, F. Levi, P. De Natale, G. Santambrogio, S. Borri

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    We report on a metrological-grade mid-IR source with a 10-14 short-Term instability for high-precision spectroscopy. Our source is based on the combination of a quantum cascade laser and a coherent radiation obtained by difference-frequency generation in an orientation-patterned gallium phosphide (OP-GaP) crystal. The pump and signal lasers are locked to an optical frequency comb referenced to the primary frequency standard via an optical fiber link. We demonstrate the robustness of the apparatus by measuring a vibrational transition around 6 μm on a metastable state of CO molecuels with 11 digits of precision.

    Original languageEnglish
    Title of host publicationNonlinear Frequency Generation and Conversion
    Subtitle of host publicationMaterials and Devices XVII
    EditorsKonstantin L. Vodopyanov, Kenneth L. Schepler
    PublisherSPIE
    Volume10516
    ISBN (Electronic)9781510615175
    DOIs
    Publication statusPublished - Jan 1 2018
    EventNonlinear Frequency Generation and Conversion: Materials and Devices XVII 2018 - San Francisco, United States
    Duration: Jan 29 2018Jan 31 2018

    Conference

    ConferenceNonlinear Frequency Generation and Conversion: Materials and Devices XVII 2018
    CountryUnited States
    CitySan Francisco
    Period1/29/181/31/18

    Keywords

    • Difference frequency generation
    • Frequency metrology
    • High-resolution spectroscopy
    • Laser stabilization
    • Nonlinear Crystals

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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  • Cite this

    Insero, G., Clivati, C., D'Ambrosio, D., Cancio Pastor, P., Verde, M., Schunemann, P. G., Zondy, J. J., Inguscio, M., Calonico, D., Levi, F., De Natale, P., Santambrogio, G., & Borri, S. (2018). Metrological-grade tunable coherent source in the mid-infrared for molecular precision spectroscopy. In K. L. Vodopyanov, & K. L. Schepler (Eds.), Nonlinear Frequency Generation and Conversion: Materials and Devices XVII (Vol. 10516). [105160O] SPIE. https://doi.org/10.1117/12.2294025