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  • CH3OH  (2)
  • 3320E  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    A study of the methanol laser with a 500 MHz tunable CO2 pump laser (1988)
    Springer
    Applied physics 47 (1988), S. 47-54 
    Details
    ISSN: 1432-0649
    Keywords: 3320E ; 3380B ; 4255H
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The absorption spectrum of CH3OH is measured optoacoustically over a 500 MHz tuning range in 84 different CO2 laser lines, and 19 assigned CO-stretch absorptions are used for establishing the linearity of the measurements over two decades of absorption coefficient. 40 new FIR laser lines originating from large offset absorption, are reported in the wavelength range between 40 and 400 μm, and their wavelengths are given with a relative accuracy of 5×10−5. 30 lines are assigned, involving CO-stretch transitions in torsionaln=0, 1, and 2 states, as well as transitions inn=3 of the vibrational ground state, pumped by transitions to Fermi interacting states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696208
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Methanol laser lines from torsionally excited co stretch states, and from OH-bend, CH3-rock, and CH3-deformation states (1986)
    Springer
    International journal of infrared and millimeter waves 7 (1986), S. 1605-1629 
    Details
    ISSN: 1572-9559
    Keywords: optically pumped far infrared laser ; CH3OH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using a quasi-CW CO2 oscillator-amplifier combination with peak power 300 Watt, we have generated FIR laser emission in weak absorption bands of CH3OH. 40 new lines are reported, and their wavelengths are measured with a relative accuracy of 5×10−5. A total of 72 lines are assigned. 34 of these involve torsional n=1, 2, and 3 states of the CO stretch and the vibrational ground state. The remaining lines are associated with the CH3-rock, OH-bend, and CH3-deformation modes. The latter are located 1460 cm−1 above the ground state, and are pumped by simultaneous vibrational excitation and torsional deexcitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010761
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Observation and assignment of torsional transitions in FIR emission from optically pumped CH3OH (1983)
    Springer
    International journal of infrared and millimeter waves 4 (1983), S. 707-732 
    Details
    ISSN: 1572-9559
    Keywords: optically pumped far infrared laser ; CH3OH ; internal rotation ; CO stretch vibration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using output coupling by reststrahlen reflection from NaCl we have observed 14 new FIR lines in the wavelength range between 30 μm and 60 μm. Two of them have been identified as torsional n=1→0 transitions in the CO stretch vibration. Together with lines previously reported in the literature they are the basis for an identification of 41 FIR lines associated with torsionally excited states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01009691
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