The 60 GHz Oxygen Resonances
Tretyakov, M. Yu, M. A. Koshelev, V. V. Dorovskikh, D. S. Makarov, and P. W. Rosenkranz. "60-GHz oxygen band: precise broadening and central frequencies of fine-structure lines, absolute absorption profile at atmospheric pressure, and revision of mixing coefficients." Journal of Molecular Spectroscopy 231, no. 1 (2005): 1-14. http://radiometrics.com/data/uploads/2012/11/Tretyakova_JMS_05.pdf
more than 37 resonances:
Quantum |
freq |
a1 |
a2 |
a3 |
a5 |
a6 |
ID |
GHz |
|
|
GHz/10⁵Pa |
1/10⁵Pa |
1/10⁵Pa |
1+ |
56.264774 |
543.4 |
0.014 |
1.703 |
0.3525 |
-0.0978 |
3- |
62.486253 |
1503.0 |
0.083 |
1.513 |
-0.4499 |
0.0844 |
3+ |
58.446588 |
1442.1 |
0.083 |
1.491 |
0.6768 |
-0.1273 |
5- |
60.306056 |
2103.4 |
0.207 |
1.415 |
-0.6395 |
0.0699 |
5+ |
59.590983 |
2090.7 |
0.207 |
1.408 |
0.6957 |
-0.0776 |
7- |
59.164204 |
2379.9 |
0.387 |
1.353 |
-0.6561 |
0.2309 |
7+ |
60.434778 |
2438.0 |
0.386 |
1.339 |
0.6342 |
-0.2825 |
9- |
58.323877 |
2363.7 |
0.621 |
1.295 |
-0.1932 |
0.0436 |
9+ |
61.150562 |
2479.5 |
0.621 |
1.292 |
0.1014 |
-0.0584 |
11- |
57.612486 |
2120.1 |
0.910 |
1.262 |
-0.5416 |
0.6056 |
11+ |
61.800158 |
2275.9 |
0.910 |
1.263 |
0.5014 |
-0.6619 |
13- |
56.968211 |
1746.6 |
1.255 |
1.223 |
-0.3545 |
0.6451 |
13+ |
62.411220 |
1915.4 |
1.255 |
1.217 |
0.3029 |
-0.6759 |
15- |
56.363399 |
1331.8 |
1.654 |
1.189 |
-0.2378 |
0.6547 |
15+ |
62.997984 |
1490.2 |
1.654 |
1.174 |
0.1856 |
-0.6675 |
17- |
55.783815 |
945.3 |
2.109 |
1.134 |
-0.1172 |
0.6135 |
17+ |
63.568526 |
1078.0 |
2.108 |
1.134 |
0.0658 |
-0.6139 |
19- |
55.221384 |
627.1 |
2.618 |
1.089 |
0.2560 |
0.2952 |
19+ |
64.127775 |
728.7 |
2.617 |
1.088 |
-0.3036 |
-0.2895 |
21- |
54.671180 |
389.7 |
3.182 |
1.037 |
0.3558 |
0.2654 |
21+ |
64.678910 |
461.3 |
3.181 |
1.038 |
-0.3968 |
-0.2590 |
23- |
54.130025 |
227.3 |
3.800 |
0.996 |
0.3170 |
0.3750 |
23+ |
65.224078 |
274.0 |
3.800 |
0.996 |
-0.3528 |
-0.3680 |
25- |
53.595775 |
124.6 |
4.474 |
0.955 |
0.2227 |
0.5085 |
25+ |
65.764779 |
153.0 |
4.473 |
0.955 |
-0.2548 |
-0.5002 |
27- |
53.066934 |
64.29 |
5.201 |
0.906 |
0.1349 |
0.6206 |
27+ |
66.302096 |
80.40 |
5.200 |
0.906 |
-0.1660 |
-0.6091 |
29- |
52.542418 |
31.24 |
5.983 |
0.858 |
0.1388 |
0.6526 |
29+ |
66.836834 |
39.80 |
5.982 |
0.858 |
-0.1680 |
-0.6393 |
31- |
52.021429 |
14.32 |
6.819 |
0.811 |
0.1667 |
0.6640 |
31+ |
67.369601 |
18.56 |
6.818 |
0.811 |
-0.1956 |
-0.6475 |
33- |
51.503360 |
6.193 |
7.709 |
0.764 |
0.1947 |
0.6729 |
33+ |
67.900868 |
8.172 |
7.708 |
0.764 |
-0.2216 |
-0.6545 |
35- |
50.987745 |
2.529 |
8.653 |
0.717 |
0.2246 |
0.680 |
35+ |
68.431006 |
3.397 |
8.652 |
0.717 |
-0.2492 |
-0.660 |
37- |
50.474214 |
0.975 |
9.651 |
0.669 |
0.2566 |
0.685 |
37+ |
68.960312 |
1.334 |
9.650 |
0.669 |
-0.2773 |
-0.665 |
Quantum |
freq |
a1 |
a2 |
a3 |
a5 |
a6 |
ID |
GHz |
|
|
GHz/10⁵Pa |
1/10⁵Pa |
1/10⁵Pa |
- a1 is proportional to magnitude of the effect. the center is around 59.4 GHz.
- All of these lines are "pressure broadened" - they are sharper and more resonant in thinner air. At full atmospheric pressure, they merge into one broad curve.
I was hoping there was a way to take advantage of these resonances - perhaps for beam focusing, or even tailoring a signal to punch through this resonance to reach the ground. If this is possible, it is beyond what I can imagine.