Absorption of Microwaves by Oxygen in the Millimeter Wavelength Region

J. O. Artman; J. P. Gordon

doi:10.1103/PhysRev.96.1237

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Absorption of Microwaves by Oxygen in the Millimeter Wavelength Region

J. O. Artman^* and J. P. Gordon

Columbia University, New York, New York

^*Now at Lincoln Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts.

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Phys. Rev. 96, 1237 – Published 1 December, 1954

DOI: https://doi.org/10.1103/PhysRev.96.1237

Abstract

Pressure broadening of the absorption lines near 60 000 Mc/sec because of the oxygen molecule has been examined in pure oxygen, and in oxygen-nitrogen mixtures. The apparatus consisted of a large nonresonant cavity spectrometer, with bolometer detectors. At pressures of a few millimeters, a fairly constant ( $\frac{Δ ν}{P}$ ) value of 1.94±5 percent (Mc/sec) per mm Hg has been found for pure oxygen, independent of the rotational state of the molecule. To explain absorption in dry air at pressures from one-quarter to one atmosphere, a value of 0.75 for the broadening ratio of ( $\frac{Δ ν}{P}$ ) for $O_{2}$ - $N_{2}$ to ( $\frac{Δ ν}{P}$ ) for $O_{2}$ - $O_{2}$ accounts satisfactorily for the broadening effect of nitrogen. A theoretical analysis has been applied assuming the important molecular interactions are the London dispersion (polarizability) and exchange forces. Dipole-dipole forces are absent, and quadrupole- and magnetic-dipole effects are found to be too weak to be effective.

References (36)

J. H. Van Vleck, Phys. Rev. 71, 413 (1947)
J. H. Van Vleck and V. F. Weisskopf, Revs. Modern Phys. 17, 227 (1945)
P. W. Anderson, dissertation, Harvard University, 1948 Phys. Rev. 76, 647 (1949)
W. E. Lamb, Jr., Phys. Rev. 70, 308 (1946)
G. E. Becker and S. H. Autler, Phys. Rev. 70, 300 (1946)
I. R. Weingarten, dissertation, Columbia University, 1948 (unpublished)
Lamb ([4]) Becker and Autler ([5]) Weingarten ([6])
Burkhalter, Anderson, Smith, and Gordy, Phys. Rev. 79, 651 (1950)
Omitted endnote
Anderson, Smith, and Gordy, Phys. Rev. 87, 561 (1952)
B. V. Gokhale and M. W. P. Strandberg, Phys. Rev. 84, 844 (1941)
R. Beringer, Phys. Rev. 70, 53 (1946)
Dicke, Beringer, Kyhl, and Vane, Phys. Rev. 70, 340 (1946)
H. R. Lamont, Phys. Rev. 74, 353 (1948) Proc. Phys. Soc. (London) 61, 562 (1948)
Strandberg, Meng, and Ingersoll, Phys. Rev. 75, 1524 (1949)
G. R. Nicoll and F. L. Warner, Telecommunications Research Establishment Memorandum 471, July 1951 (unpublished)
C. H. Townes and A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill Book Company, Inc., New York, to be published)
M. Mizushima, Phys. Rev. 83, 94 (1941) ibid.84, 363 (1951)
Anderson, Smith, and Gordy, Phys. Rev. 82, 264 (1951)
E. H. Kennard, Kinetic Theory of Gases (McGraw-Hill Book Company, Inc., New York, 1932), p. 149
Omitted endnote
R. R. Howard and W. V. Smith, Phys. Rev. 79, 128 (1950) W. V. Smith and R. Howard, 79, 132 (1950)
Omitted endnote
Omitted endnote
J. C. Slater, Phys. Rev. 32, 349 (1928)
Miller, Townes, and Kotani, Phys. Rev. 90, 542 (1953)
M. Born and J. E. Mayer, Z. Physik 75, 1 (1932)
F. Seitz, The Modern Theory of Solids (McGraw-Hill Book Company, Inc., New York, 1945)
E. S. Rittner, J. Chem. Phys. 19, 1030 (1951)
W. E. Bleick and J. E. Mayer, J. Chem. Phys. 2, 252 (1934)
M. Kunimine, J. Chem. Phys. 18, 754 (1950) Progr. Theoret. Phys. (Japan) 5, 412 (1950)
Omitted endnote
Omitted endnote
Omitted endnote
R. Beringer and J. G. Castle, Jr., Phys. Rev. 81, 82 (1951)
R. M. Hill and W. Gordy, Phys. Rev. 91, 222 (1953)

[c1] J. H. Van Vleck, Phys. Rev. 71, 413 (1947)

[c2] J. H. Van Vleck and V. F. Weisskopf, Revs. Modern Phys. 17, 227 (1945)

[c3] P. W. Anderson, dissertation, Harvard University, 1948 Phys. Rev. 76, 647 (1949)

[c4] W. E. Lamb, Jr., Phys. Rev. 70, 308 (1946)

[c5] G. E. Becker and S. H. Autler, Phys. Rev. 70, 300 (1946)

[c6] I. R. Weingarten, dissertation, Columbia University, 1948 (unpublished)

[c7] Lamb ([4]) Becker and Autler ([5]) Weingarten ([6])

[c8] Burkhalter, Anderson, Smith, and Gordy, Phys. Rev. 79, 651 (1950)

[c9] Omitted endnote

[c10] Anderson, Smith, and Gordy, Phys. Rev. 87, 561 (1952)

[c11] B. V. Gokhale and M. W. P. Strandberg, Phys. Rev. 84, 844 (1941)

[c12] R. Beringer, Phys. Rev. 70, 53 (1946)

[c13] Dicke, Beringer, Kyhl, and Vane, Phys. Rev. 70, 340 (1946)

[c14] H. R. Lamont, Phys. Rev. 74, 353 (1948) Proc. Phys. Soc. (London) 61, 562 (1948)

[c15] Strandberg, Meng, and Ingersoll, Phys. Rev. 75, 1524 (1949)

[c16] G. R. Nicoll and F. L. Warner, Telecommunications Research Establishment Memorandum 471, July 1951 (unpublished)

[c17] C. H. Townes and A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill Book Company, Inc., New York, to be published)

[c18] M. Mizushima, Phys. Rev. 83, 94 (1941) ibid.84, 363 (1951)

[c19] Anderson, Smith, and Gordy, Phys. Rev. 82, 264 (1951)

[c20] E. H. Kennard, Kinetic Theory of Gases (McGraw-Hill Book Company, Inc., New York, 1932), p. 149

[c21] Omitted endnote

[c22] R. R. Howard and W. V. Smith, Phys. Rev. 79, 128 (1950) W. V. Smith and R. Howard, 79, 132 (1950)

[c23] Omitted endnote

[c24] Omitted endnote

[c25] J. C. Slater, Phys. Rev. 32, 349 (1928)

[c26] Miller, Townes, and Kotani, Phys. Rev. 90, 542 (1953)

[c27] M. Born and J. E. Mayer, Z. Physik 75, 1 (1932)

[c28] F. Seitz, The Modern Theory of Solids (McGraw-Hill Book Company, Inc., New York, 1945)

[c29] E. S. Rittner, J. Chem. Phys. 19, 1030 (1951)

[c30] W. E. Bleick and J. E. Mayer, J. Chem. Phys. 2, 252 (1934)

[c31] M. Kunimine, J. Chem. Phys. 18, 754 (1950) Progr. Theoret. Phys. (Japan) 5, 412 (1950)

[c32] Omitted endnote

[c33] Omitted endnote

[c34] Omitted endnote

[c35] R. Beringer and J. G. Castle, Jr., Phys. Rev. 81, 82 (1951)

[c36] R. M. Hill and W. Gordy, Phys. Rev. 91, 222 (1953)

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Absorption of Microwaves by Oxygen in the Millimeter Wavelength Region

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