Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Frequency comb assisted two-photon vibrational spectroscopy.

Juho Karhu, Markku Vainio, Markus Metsälä

    Optics Express
    |April 7, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Cultivation of aerobic hydrogen-oxidizing bacteria on CO<sub>2</sub> derived from anaerobic digestion and acid fermentation.

    Bioresource technology·2026
    Same author

    Stability of bicyclic guanidine superbases and their salts in water.

    RSC advances·2025
    Same author

    Calibration-free infrared absorption spectroscopy using cantilever-enhanced photoacoustic detection of the optical power.

    Photoacoustics·2024
    Same author

    Reference-free dual-comb spectroscopy with inbuilt coherence: publisher's note.

    Optics letters·2024
    Same author

    Reference-free dual-comb spectroscopy with inbuilt coherence.

    Optics letters·2024
    Same author

    Anaerobic Digestion of Solid Agricultural Biomass in Leach-Bed Reactors.

    Bioengineering (Basel, Switzerland)·2023

    We developed a high-resolution spectroscopy setup using stabilized optical frequency combs. This system achieved sub-Doppler resolution for a two-photon transition in acetylene, demonstrating its high sensitivity and precision.

    Area of Science:

    • Spectroscopy
    • Quantum Optics
    • Molecular Spectroscopy

    Background:

    • High-resolution spectroscopy is crucial for understanding molecular properties.
    • Optical frequency combs offer unprecedented precision for laser stabilization.
    • Two-photon spectroscopy enables probing of specific molecular transitions.

    Purpose of the Study:

    • To report a novel setup for high-resolution two-photon spectroscopy.
    • To demonstrate the capability of the setup for precise molecular measurements.
    • To achieve sub-Doppler resolution and high signal-to-noise ratio.

    Main Methods:

    • Utilizing a mid-infrared continuous wave optical parametric oscillator (CW-OPO) and a near-infrared diode laser.
    • Locking both lasers to fully stabilized optical frequency combs.

    Related Experiment Videos

  • Employing an optical phase-locked loop for diode laser stabilization and frequency locking for mid-infrared comb stabilization.

    • Main Results:

    • Successfully measured a double resonant two-photon transition to a symmetric vibrational state of acetylene.
    • Achieved sub-Doppler resolution, significantly enhancing spectral detail.
    • Obtained a high signal-to-noise ratio, indicating the setup's sensitivity.

    Conclusions:

    • The developed spectroscopy setup provides high-resolution measurements with excellent precision.
    • The system is capable of detailed molecular state analysis.
    • This technique advances the study of molecular vibrations and spectroscopy.