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Atomic Fluorescence Spectroscopy01:29

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Spectroscopy of the CF(4) laser.

R S McDowell, C W Patterson, C R Jones

    Optics Letters
    |August 19, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Accurate measurements of carbon-12 tetrafluoride ((12)CF(4)) laser lines were achieved using carbon-12, 16-oxygen-2 ((12)C(16)O(2)) pump lasers. This study determined key spectroscopic constants for the (12)CF(4) nu(2) level.

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    Area of Science:

    • Molecular Spectroscopy
    • Laser Physics
    • Infrared Spectroscopy

    Background:

    • The (nu(2) + nu(4)) ? nu(2) laser system in carbon-12 tetrafluoride ((12)CF(4)) is a source of far-infrared radiation.
    • Understanding the precise spectroscopic parameters of this system is crucial for its application in various scientific fields.

    Purpose of the Study:

    • To accurately measure the frequencies of 28 laser lines in the (12)CF(4) (nu(2) + nu(4)) ? nu(2) system.
    • To identify the specific (12)CF(4) and (12)C(16)O(2) transitions involved in the laser operation.
    • To determine the band origin and rotational constant for the nu(2) vibrational level of (12)CF(4).

    Main Methods:

    • Utilized carbon-12, 16-oxygen-2 ((12)C(16)O(2)) molecules as pump sources, spanning P(14) to R(24) transitions.
    • Measured the frequencies of 28 (12)CF(4) laser lines with a high accuracy of +/-0.2 cm(-1).
    • Analyzed the spectroscopic data to identify pump and laser transitions and derive molecular constants.

    Main Results:

    • Successfully measured 28 (12)CF(4) laser line frequencies.
    • Identified the corresponding (12)CF(4) and (12)C(16)O(2) transitions.
    • Determined the band origin (nu(2)) to be 435.27 +/- 0.06 cm(-1) and the rotational constant (B(2)) to be 0.19143 +/- 0.00007 cm(-1) for the nu(2) level.

    Conclusions:

    • The determined spectroscopic constants allow for accurate prediction of (12)CF(4) laser frequencies for any given pumping frequency.
    • This work provides a precise spectroscopic database for the (12)CF(4) (nu(2) + nu(4)) ? nu(2) laser system.
    • The findings enhance the utility of this laser system for spectroscopic applications.