Abstract

Absolute optical cross sections for the excitation from the <i>X</i><sup>2</sup>Σ<sub>σ</sub><sup>+</sup> ground state of N<sub>2</sub> by electron impact have been measured for 39 N<sub>2</sub> first positive bands (<i>B</i><sup>3</sup>II<sub>σ</sub>-<i>A</i><sup>3</sup>Σ<sub>u</sub><sup>+</sup>), 12 N<sub>2</sub><sup>+</sup> first negative bands (B<sup>3</sup>Σ<sub>u</sub>-X<sup>2</sup>Σ<sub>σ</sub><sup>+</sup>), and 10 N<sub>2</sub><sup>+</sup> Meinel bands (A<sup>2</sup>II<sub>u</sub>-X<sup>3</sup>Σ<sub>σ</sub><sup>+</sup>). Relative excitation functions are presented for N<sub>2</sub> first negative bands with <i>v</i>′ values from 0 through 9 for 0 to 50 eV, for the (0,0) and (1,0) N<sub>2</sub><sup>+</sup> first negative bands for 0 to 450 eV, and for the (3,0) and (4,1) N<sub>2</sub><sup>+</sup> Meinel bands for 0 to 450 eV. The first-positive excitation functions exhibit sharp peaks at 10–12 eV and at 14–15 eV and exhibit an S-shaped change in slope about midway between onset and the maximum of the first sharp peak. The first negative and Meinel excitation functions have broad maxima at about 120 eV and 100 eV.

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  1. John D. Jobe and Robert M. St. John, J. Opt. Soc. Am. 57, 1449 (1967).
  2. A. E. de Vries and P. K. Pol, Vacuum 15, 135 (1965).
  3. J. C. DeVos, Physica 20, 690 (1954).
  4. John D. Jobe, Ph.D. dissertation (University of Oklahoma, Norman, Oklahoma, 1968), p. 15.
  5. R. W. B. Pearse and A. G. Gaydon, The Identification of M1olecular Spectra (Chapman and Hall, London, 1963), 3rd ed., p. 210.
  6. R. N. Zare, E. O. Larsson, and R. A. Berg, J. Mol. Spectry. 15, 117 (1965).
  7. B. L. Moiseiwitsch and S. J. Smith, Rev. Mod. Phys. 40, 238 (1968). See pages 283–285. Our instrument polarization was very similar to that of Fig. 60.
  8. J. D. Jobe, F. A. Sharpton, and R. M. St. John, J. Opt. Soc. Am. 57, 106 (1967).
  9. R. W. Nicholls, J. Res. Natl. Bur. Std. (U. S.) A65, 451 (1961).
  10. V. V. Skubenich and I. P. Zapesochny, in International Conference on the Physics of Electronic and Atomic Collisions (Nauka Publishing House, Leningrad, 1967), Abstr. V, p. 570.
  11. J. W. McConkey, J. M. Woolsey, and D. J. Burns, Planet. Space Sci. 15, 1332 (1967).
  12. B. N. Srivastava and I. M. Mirza, Phys. Rev. 168, 86 (1968).
  13. D. T. Stewart, Proc. Roy. Soc. (London) A69, 437 (1956).
  14. W. F. Sheridan, O. Oldenberg, and N. P. Carleton, in International Conference on the Physics of Electronic and Atomic Collisions (W. A. Benjamin, Inc., New York, 1961), Abstr. II, p. 159.
  15. Hiroyuki Nishimura, J. Phys. Soc. Japan 24, 130 (1968).

Berg, R. A.

R. N. Zare, E. O. Larsson, and R. A. Berg, J. Mol. Spectry. 15, 117 (1965).

Burns, D. J.

J. W. McConkey, J. M. Woolsey, and D. J. Burns, Planet. Space Sci. 15, 1332 (1967).

Carleton, N. P.

W. F. Sheridan, O. Oldenberg, and N. P. Carleton, in International Conference on the Physics of Electronic and Atomic Collisions (W. A. Benjamin, Inc., New York, 1961), Abstr. II, p. 159.

de Vries, A. E.

A. E. de Vries and P. K. Pol, Vacuum 15, 135 (1965).

DeVos, J. C.

J. C. DeVos, Physica 20, 690 (1954).

Gaydon, A. G.

R. W. B. Pearse and A. G. Gaydon, The Identification of M1olecular Spectra (Chapman and Hall, London, 1963), 3rd ed., p. 210.

Jobe, J. D.

J. D. Jobe, F. A. Sharpton, and R. M. St. John, J. Opt. Soc. Am. 57, 106 (1967).

Jobe, John D.

John D. Jobe, Ph.D. dissertation (University of Oklahoma, Norman, Oklahoma, 1968), p. 15.

John D. Jobe and Robert M. St. John, J. Opt. Soc. Am. 57, 1449 (1967).

John, R. M. St.

J. D. Jobe, F. A. Sharpton, and R. M. St. John, J. Opt. Soc. Am. 57, 106 (1967).

John, Robert M. St.

John D. Jobe and Robert M. St. John, J. Opt. Soc. Am. 57, 1449 (1967).

Larsson, E. O.

R. N. Zare, E. O. Larsson, and R. A. Berg, J. Mol. Spectry. 15, 117 (1965).

McConkey, J. W.

J. W. McConkey, J. M. Woolsey, and D. J. Burns, Planet. Space Sci. 15, 1332 (1967).

Mirza, I. M.

B. N. Srivastava and I. M. Mirza, Phys. Rev. 168, 86 (1968).

Moiseiwitsch, B. L.

B. L. Moiseiwitsch and S. J. Smith, Rev. Mod. Phys. 40, 238 (1968). See pages 283–285. Our instrument polarization was very similar to that of Fig. 60.

Nicholls, R. W.

R. W. Nicholls, J. Res. Natl. Bur. Std. (U. S.) A65, 451 (1961).

Nishimura, Hiroyuki

Hiroyuki Nishimura, J. Phys. Soc. Japan 24, 130 (1968).

Oldenberg, O.

W. F. Sheridan, O. Oldenberg, and N. P. Carleton, in International Conference on the Physics of Electronic and Atomic Collisions (W. A. Benjamin, Inc., New York, 1961), Abstr. II, p. 159.

Pearse, R. W. B.

R. W. B. Pearse and A. G. Gaydon, The Identification of M1olecular Spectra (Chapman and Hall, London, 1963), 3rd ed., p. 210.

Pol, P. K.

A. E. de Vries and P. K. Pol, Vacuum 15, 135 (1965).

Sharpton, F. A.

J. D. Jobe, F. A. Sharpton, and R. M. St. John, J. Opt. Soc. Am. 57, 106 (1967).

Sheridan, W. F.

W. F. Sheridan, O. Oldenberg, and N. P. Carleton, in International Conference on the Physics of Electronic and Atomic Collisions (W. A. Benjamin, Inc., New York, 1961), Abstr. II, p. 159.

Skubenich, V. V.

V. V. Skubenich and I. P. Zapesochny, in International Conference on the Physics of Electronic and Atomic Collisions (Nauka Publishing House, Leningrad, 1967), Abstr. V, p. 570.

Smith, S. J.

B. L. Moiseiwitsch and S. J. Smith, Rev. Mod. Phys. 40, 238 (1968). See pages 283–285. Our instrument polarization was very similar to that of Fig. 60.

Srivastava, B. N.

B. N. Srivastava and I. M. Mirza, Phys. Rev. 168, 86 (1968).

Stewart, D. T.

D. T. Stewart, Proc. Roy. Soc. (London) A69, 437 (1956).

Woolsey, J. M.

J. W. McConkey, J. M. Woolsey, and D. J. Burns, Planet. Space Sci. 15, 1332 (1967).

Zapesochny, I. P.

V. V. Skubenich and I. P. Zapesochny, in International Conference on the Physics of Electronic and Atomic Collisions (Nauka Publishing House, Leningrad, 1967), Abstr. V, p. 570.

Zare, R. N.

R. N. Zare, E. O. Larsson, and R. A. Berg, J. Mol. Spectry. 15, 117 (1965).

Other (15)

John D. Jobe and Robert M. St. John, J. Opt. Soc. Am. 57, 1449 (1967).

A. E. de Vries and P. K. Pol, Vacuum 15, 135 (1965).

J. C. DeVos, Physica 20, 690 (1954).

John D. Jobe, Ph.D. dissertation (University of Oklahoma, Norman, Oklahoma, 1968), p. 15.

R. W. B. Pearse and A. G. Gaydon, The Identification of M1olecular Spectra (Chapman and Hall, London, 1963), 3rd ed., p. 210.

R. N. Zare, E. O. Larsson, and R. A. Berg, J. Mol. Spectry. 15, 117 (1965).

B. L. Moiseiwitsch and S. J. Smith, Rev. Mod. Phys. 40, 238 (1968). See pages 283–285. Our instrument polarization was very similar to that of Fig. 60.

J. D. Jobe, F. A. Sharpton, and R. M. St. John, J. Opt. Soc. Am. 57, 106 (1967).

R. W. Nicholls, J. Res. Natl. Bur. Std. (U. S.) A65, 451 (1961).

V. V. Skubenich and I. P. Zapesochny, in International Conference on the Physics of Electronic and Atomic Collisions (Nauka Publishing House, Leningrad, 1967), Abstr. V, p. 570.

J. W. McConkey, J. M. Woolsey, and D. J. Burns, Planet. Space Sci. 15, 1332 (1967).

B. N. Srivastava and I. M. Mirza, Phys. Rev. 168, 86 (1968).

D. T. Stewart, Proc. Roy. Soc. (London) A69, 437 (1956).

W. F. Sheridan, O. Oldenberg, and N. P. Carleton, in International Conference on the Physics of Electronic and Atomic Collisions (W. A. Benjamin, Inc., New York, 1961), Abstr. II, p. 159.

Hiroyuki Nishimura, J. Phys. Soc. Japan 24, 130 (1968).

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