• DocumentCode
    1103099
  • Title

    A tunable far infrared laser

  • Author

    Danly, B.G. ; Evangelides, S.G. ; Temkin, R.J. ; Lax, B.

  • Author_Institution
    Massachusetts Institute of Technology, Cambridge, MA, USA
  • Volume
    20
  • Issue
    8
  • fYear
    1984
  • fDate
    8/1/1984 12:00:00 AM
  • Firstpage
    834
  • Lastpage
    837
  • Abstract
    A continuously tunable far infrared (FIR) laser has been demonstrated; experimental results are presented. A high-pressure (10-12 atm) continuously tunable CO2TE laser is used to pump Raman transitions in CH3F; the generation of continuously tunable radiation in the 250-300 \\mu m wavelength range is reported. Accurate frequency and bandwidth measurements have been made and the FIR bandwidth in superradiant emission is \\approx 4-5 GHz. Consequently, the generation of frequency tunable, subnanosecond pulses in the FIR appears feasible. The generation of tunable laser radiation from 150 to 1000 μm by stimulated Raman scattering should be possible using higher pump intensity and/or other gases.
  • Keywords
    Laser tuning; Pulsed lasers; Raman lasers; Submillimeter-wave lasers; Bandwidth; Finite impulse response filter; Frequency measurement; Laser excitation; Laser transitions; Pump lasers; Stimulated emission; Tellurium; Tunable circuits and devices; Wavelength measurement;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1984.1072485
  • Filename
    1072485