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Optically pumped CD3F submillimeter-wave laser.

M S Tobin1, J P Sattler, G L Wood

  • 1US Army Electronics Research and Development Command, Harry Diamond Laboratories, Adelphi, Maryland 20783, USA.

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

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Fully deuterated methyl fluoride exhibits submillimeter-wave laser action for the first time. Researchers achieved twelve new laser lines using optical pumping, demonstrating potential for new light sources.

Area of Science:

  • Quantum optics
  • Molecular spectroscopy
  • Laser physics

Background:

  • Submillimeter-wave (sub-mmW) lasers are crucial for various scientific applications.
  • Deuterated compounds offer unique spectral properties compared to their hydrogen counterparts.
  • Previous research has not explored sub-mmW laser action in fully deuterated methyl fluoride.

Purpose of the Study:

  • To report the first observation of submillimeter-wave laser action in fully deuterated methyl fluoride (CH3F-d3).
  • To identify new sub-mmW laser lines through optical pumping.
  • To investigate the lasing characteristics in a waveguide resonator.

Main Methods:

  • Optical pumping of fully deuterated methyl fluoride using twelve carbon dioxide (CO2) laser lines.
  • Utilizing CO2 laser lines in the 9- and 10-micrometer regions for excitation.

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  • Employing an unoptimized hole-coupled waveguide resonator to sustain laser action.

    • Main Results:

    • Achieved submillimeter-wave laser action in CH3F-d3 for the first time.
    • Generated twelve new sub-mmW laser lines.
    • Observed continuous-wave (cw) lasing at milliwatt levels on two lines.

    Conclusions:

    • Fully deuterated methyl fluoride is a viable active medium for submillimeter-wave lasers.
    • Optical pumping provides an effective method for exciting sub-mmW laser transitions in this molecule.
    • The results open avenues for developing novel sub-mmW light sources.