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 Video

Updated: Jun 20, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Additional cw FIR laser lines from optically pumped CH(2)F(2).

A Scalabrin, K M Evenson

    Optics Letters
    |August 19, 2009
    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

    Far-infrared continuous-wave laser emission from H2O and from NH(3) optically pumped by a CO laser.

    Optics letters·2009
    Same author

    Sequential optical pumping of a far-infrared ammonia laser.

    Optics letters·2009
    Same author

    Short-wavelength far-infrared laser cavity yielding new lines in methanol.

    Optics letters·2009
    Same author

    Sub-Doppler tunable far-infrared spectroscopy.

    Optics letters·2009
    Same author

    Pressure effects on the frequency of continuous-wave optically pumped far-infrared lasers.

    Optics letters·2009
    Same author

    Direct frequency measurements of transitions at 520 THz (576 nm) in iodine and 260 THz (1.15 microm) in neon.

    Optics letters·2009
    Same journal

    Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

    Optics letters·2026
    Same journal

    E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

    Optics letters·2026
    Same journal

    Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

    Optics letters·2026
    Same journal

    Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

    Optics letters·2026
    Same journal

    Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

    Optics letters·2026
    Same journal

    Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

    Optics letters·2026
    See all related articles

    Researchers discovered 25 new continuous-wave (cw) far-infrared (FIR) laser lines from difluoromethane (CH2F2). These new FIR laser lines extend the spectral coverage for molecular spectroscopy applications.

    Area of Science:

    • Molecular Spectroscopy
    • Laser Physics
    • Quantum Optics

    Background:

    • Far-infrared (FIR) laser spectroscopy is crucial for analyzing molecular structures and dynamics.
    • Difluoromethane (CH2F2) is a molecule with potential for FIR laser applications.
    • Optical pumping with carbon dioxide (CO2) lasers is a common method for generating FIR laser lines.

    Purpose of the Study:

    • To discover new continuous-wave (cw) far-infrared (FIR) laser lines from difluoromethane (CH2F2).
    • To accurately measure the wavelengths of known and newly identified CH2F2 FIR laser lines.
    • To expand the available spectral range for FIR molecular spectroscopy.

    Main Methods:

    • Utilized a variable-coupling, open-structure resonator for optical pumping experiments.

    More Related Videos

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
    08:48

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

    Published on: November 22, 2019

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    Related Experiment Videos

    Last Updated: Jun 20, 2026

    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
    09:38

    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

    Published on: December 18, 2015

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
    08:48

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

    Published on: November 22, 2019

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

  • Employed a carbon dioxide (CO2) laser as the optical pump source.
  • Systematically searched for new FIR emission lines from CH2F2 gas.

    • Main Results:

    • Identified 25 novel cw FIR laser lines originating from CH2F2.
    • Precisely measured the wavelengths of the 47 previously known CH2F2 lines.
    • Observed a uniform distribution of the new lines across a broad spectral range (105–1448 micrometers).

    Conclusions:

    • The discovery of 25 new FIR laser lines significantly enhances the spectral resources for CH2F2.
    • Accurate wavelength measurements provide valuable data for spectroscopic databases and assignments.
    • The findings broaden the utility of CH2F2 as a FIR laser source for scientific research.