Very high-resolution synchrotron radiation far-infrared (FIR) spectrum of methanol-d2 (CHD2OH) & millimeter-wave (MMW) measurements involving highly excited torsional vibrational rotational states, and identification of optically pumped FIR laser lines

2020 ◽  
pp. 103563
Author(s):  
Indranath Mukhopadhyay ◽  
B.E. Billinghurst
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Millimeter Wave ◽  
Far Infrared ◽  
Fir Laser ◽  
Optically Pumped ◽  
Optically Pumped Fir Laser ◽  
Rotational States ◽  
Very High ◽  
Fir Laser Lines

Spectroscopy of new CH3OH FIR laser lines pumped by new CO2 laser lines

1994 ◽  
Vol 72 (11-12) ◽  
pp. 1155-1164 ◽  
Author(s):  
Li-Hong Xu ◽  
R. M. Lees ◽  
K. M. Evenson ◽  
C.-C. Chou ◽  
J.-T. Shy ◽  
...  
Keyword(s):  
Optical Pumping ◽  
Continuous Wave ◽  
Laser Energy ◽  
Far Infrared ◽  
Fir Laser ◽  
Frequency Division ◽  
World Record ◽  
Hot Band ◽  
Very High ◽  
Fir Laser Lines

The number of CO2 laser lines available for optical pumping of far-infrared (FIR) lasers has been significantly increased by the development of a new continuous wave (cw) CO2 laser at the Time and Frequency Division of the National Institute of Standards and Technology in Boulder, Colorado. This system operates on very high-J lines of the normal bands as well as on sequence and new hot-band lines, and has generated numerous new FIR laser transitions in CH3OH. These include the new 123 μm world-record holder, pumped by the 9HP(20) hot-band CO2 line, which is now the most efficient known FIR laser line. Assignments are given for a number of the IR pump – FIR laser energy level and transition systems, based on our high-resolution Fourier transform studies of the FIR and IR spectra of CH3OH. Features of the transition system for the 123 μm line and wave numbers for several further potential FIR laser lines are presented.

New cw optically pumped FIR laser lines

1986 ◽  
Vol 41 (3) ◽  
pp. 179-181 ◽  
Author(s):  
Gerhard Taubmann ◽  
Harald Jones ◽  
P. B. Davies
Keyword(s):  
Fir Laser ◽  
Optically Pumped ◽  
Optically Pumped Fir Laser ◽  
Fir Laser Lines

New optically pumped FIR laser lines in CD3OH

1986 ◽  
Vol 7 (8) ◽  
pp. 1241-1250 ◽  
Author(s):  
D. Pereira ◽  
C. A. Ferrari ◽  
A. Scalabrin
Keyword(s):  
Fir Laser ◽  
Optically Pumped ◽  
Optically Pumped Fir Laser ◽  
Fir Laser Lines
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