Calculation of the Absorption Cross Sections of Some Molecules from GEISA Database at the Wavelengths of Isotopically Different CO2 Lasers
Table 6
The largest absorption cross sections (in 10−20 cm2 units) of CH3OH and HCCOH at low pressure and = 296 K. The Doppler shape of spectral lines is assumed.
M
Laser
Line
, cm−1
(M)a
CH3OH
26
10P(34)
1033.48800
126
36
10P(16)
1004.27987
67.2
28
10P(22)
1067.35888
93.0
38
10R(8)
1032.91023
200*
38
10R(40)
1050.77747
193*
38
10P(36)
998.62350
113
46
9R(46)
1010.98950
44.7*
46
9R(28)
1002.08279
19.4
48
9R(40)
1006.00000
146*
48
9R(24)
998.01156
107
268
10P(27)
1050.83825
368
HCOOH
26
10R(18)
1077.30252
186
26
10R(28)
1083.47878
189
26
10R(40)
1090.02837
976*
36
10R(28)
1037.16713
9.59
28
10P(8)
1078.04242
327
28
10R(34)
1104.91182
285
38
10R(44)
1052.63615
19.3
46
9R(26)
1000.94716
2.64
48
9R(30)
1001.17880
2.74
268
10R(19)
1086.22023
118
aAsterisk marks the cases where the (M) is large, but the CO2-laser line is marginal.
