Abstract

Accurate wavelength measurements in the molecular nitrogen pulsed laser have been made. Four new ir laser bands were discovered. In addition, about two hundred new stimulated emission lines belonging to the first and second positive systems were obtained and identified as to rotational quantum number. An analysis of the possible pumping mechanisms in accordance with experimental results is given.

© 1972 Optical Society of America

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  1. L. E. S. Mathias, J. T. ParkerAppl. Phys. Lett. 3, 16 (1963).
    [CrossRef]
  2. H. Heard, Nature 200, 667 (1963).
    [CrossRef]
  3. V. M. Kaslin, G. G. Petrash, JETP Lett. 3, 55 (1966).
  4. V. M. Kaslin, G. G. Petrash, Zh. Eksp. Teor. Fiz. 54, 1051 (1968) [Sov. Phys. JETP 27, 561 (1968)].
  5. F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
    [CrossRef]
  6. M. Ogawa, Y. Tanaka, J. Chem. Phys. 30, 1354 (1959).
    [CrossRef]
  7. Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
    [CrossRef]
  8. M. Ogawa, Y. Tanaka, J. Chem. Phys. 32, 754 (1960).
    [CrossRef]
  9. I. N. Knyazev, Zh. Prikl. Spektrosk. 5, 178 (1966).
  10. G. G. Petrash, Zh. Prikl. Spektrosk. 4, 395 (1966).
  11. T. Kasuya, D. R. Lide, Appl. Opt. 6, 69 (1967).
    [CrossRef] [PubMed]
  12. O. Andrade, M. Gallardo, K. Bockasten, Appl. Opt. 6, 2006 (1967).
    [CrossRef] [PubMed]
  13. M. Gallardo, C. A. Massone, M. Garavaglia, Appl. Opt. 7, 2418 (1968).
    [CrossRef] [PubMed]
  14. C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
    [CrossRef]
  15. D. A. Leonard, Appl. Phys. Lett. 7, 4 (1965).
    [CrossRef]
  16. J. D. Shipman, A. C. Kolb, IEEE J. Quantum Electron. QE-2, 298 (1966).
  17. J. D. Shipman, A. C. Kolb, A. D. Anderson, A. W. Ali, U.S. Naval Research Laboratory Rept. 6444 (1966).
  18. J. D. Shipman, Appl. Phys. Lett. 10, 3 (1967).
    [CrossRef]
  19. E. T. Gerry, Appl. Phys. Lett. 7, 6 (1965).
    [CrossRef]
  20. A. W. Ali, A. C. Kolb, A. D. Anderson, Appl. Opt. 6, 2115 (1967).
    [CrossRef] [PubMed]
  21. M. Geller, D. E. Altman, T. A. De Temple, Appl. Opt. 2232 (1968).
  22. J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
    [CrossRef]
  23. A. W. Ali, Appl. Opt. 8, 993 (1969).
    [CrossRef] [PubMed]
  24. L. Allen, D. G. C. Jones, B. M. Sivaram, Phys. Lett. 25A, 280 (1967).
  25. M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).
  26. F. P. J. Valero, J. Opt. Soc. Am. 58, 1048 (1968).
    [CrossRef]
  27. D. Goorvitch, F. P. J. Valero, A. L. Clúa, J. Opt. Soc. Am. 58, 971 (1969).
  28. G. H. Dieke, D. F. Heath, Johns Hopkins Spectroscopic Rept. 17 (1959).
  29. N. F. Mott, H. S. W. Massey, The Theory of Atomic Collisions (Clarendon Press, Oxford, 1965), Chap. 12.
  30. R. W. B. Pearse, A. G. Gaydon, The Identification of Molecular Spectra (Chapman and Hall, London, 1941).
  31. C. A. Massone (1969), Department of Physics, Lund Institute of Technology, Sweden, private communication.
  32. N. Jannuzzi (1971) Instituto de Física, Universidade Estadual de Campinas, SP, Brazil, private communication.
  33. D. T. Stewart, Proc. Phys. Soc. (London) A68, 404 (1935).
  34. S. N. Foner, R. L. Hudson, J. Chem. Phys. 45, 40 (1966).
    [CrossRef]
  35. R. E. Lund, H. J. Oskam, Z. Phys. 219, 131 (1969).
    [CrossRef]
  36. H. H. Brömer, J. Hesse, Z. Phys. 219, 269 (1969).
    [CrossRef]
  37. H. P. Broida, Y. Tanaka, J. Chem. Phys. 36, 236 (1961).
    [CrossRef]
  38. N. P. Carleton, O. Oldenberg, J. Chem. Phys. 36, 3460 (1962).
    [CrossRef]
  39. W. Brennen, J. Chem. Phys. 44, 1793 (1966).
    [CrossRef]
  40. C. Kenty, in Proceedings of the 3rd International Conference on the Physics of Electronic and Atomic Collisions, M. R. C. McDowell, Ed., North-Holland, Amsterdam, 1964.
  41. G. J. Schultz, Phys. Rev. 116, 1141 (1959).
    [CrossRef]
  42. C. K. N. Patel, Phys. Rev. 141, 71 (1966).
    [CrossRef]
  43. A. W. Ali, A. D. Anderson, U.S. Naval Research Laboratory Report 6571 (1967).
  44. I. P. Zapesochuyi, V. V. Skubenich, Opt. Spektrosk. 21, 140 (1966) [Opt. Spectrosc. 21, 83 (1966)].
  45. P. N. Stanton, R. M. St. John, J. Opt. Soc. Am. 59, 252 (1969).
    [CrossRef]
  46. J. W. McConkey, F. R. Simpson, J. Phys. B 2, 923 (1969).
    [CrossRef]
  47. R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
    [CrossRef]
  48. A. Budó, Z. Phys. 105, 579 (1937).
    [CrossRef]
  49. W. R. Bennett, Appl. Opt. Suppl. 2, 3 (1965).
  50. F. T. Arechi, in Quantum Electronics III, P. Grivet, N. Bloembergen, Eds., (Columbia U. P., New York, 1964), p.547.

1970 (1)

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

1969 (8)

P. N. Stanton, R. M. St. John, J. Opt. Soc. Am. 59, 252 (1969).
[CrossRef]

J. W. McConkey, F. R. Simpson, J. Phys. B 2, 923 (1969).
[CrossRef]

C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
[CrossRef]

A. W. Ali, Appl. Opt. 8, 993 (1969).
[CrossRef] [PubMed]

M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).

D. Goorvitch, F. P. J. Valero, A. L. Clúa, J. Opt. Soc. Am. 58, 971 (1969).

R. E. Lund, H. J. Oskam, Z. Phys. 219, 131 (1969).
[CrossRef]

H. H. Brömer, J. Hesse, Z. Phys. 219, 269 (1969).
[CrossRef]

1968 (5)

F. P. J. Valero, J. Opt. Soc. Am. 58, 1048 (1968).
[CrossRef]

M. Geller, D. E. Altman, T. A. De Temple, Appl. Opt. 2232 (1968).

J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
[CrossRef]

M. Gallardo, C. A. Massone, M. Garavaglia, Appl. Opt. 7, 2418 (1968).
[CrossRef] [PubMed]

V. M. Kaslin, G. G. Petrash, Zh. Eksp. Teor. Fiz. 54, 1051 (1968) [Sov. Phys. JETP 27, 561 (1968)].

1967 (5)

1966 (8)

S. N. Foner, R. L. Hudson, J. Chem. Phys. 45, 40 (1966).
[CrossRef]

W. Brennen, J. Chem. Phys. 44, 1793 (1966).
[CrossRef]

I. N. Knyazev, Zh. Prikl. Spektrosk. 5, 178 (1966).

G. G. Petrash, Zh. Prikl. Spektrosk. 4, 395 (1966).

J. D. Shipman, A. C. Kolb, IEEE J. Quantum Electron. QE-2, 298 (1966).

V. M. Kaslin, G. G. Petrash, JETP Lett. 3, 55 (1966).

C. K. N. Patel, Phys. Rev. 141, 71 (1966).
[CrossRef]

I. P. Zapesochuyi, V. V. Skubenich, Opt. Spektrosk. 21, 140 (1966) [Opt. Spectrosc. 21, 83 (1966)].

1965 (3)

W. R. Bennett, Appl. Opt. Suppl. 2, 3 (1965).

D. A. Leonard, Appl. Phys. Lett. 7, 4 (1965).
[CrossRef]

E. T. Gerry, Appl. Phys. Lett. 7, 6 (1965).
[CrossRef]

1963 (2)

L. E. S. Mathias, J. T. ParkerAppl. Phys. Lett. 3, 16 (1963).
[CrossRef]

H. Heard, Nature 200, 667 (1963).
[CrossRef]

1962 (1)

N. P. Carleton, O. Oldenberg, J. Chem. Phys. 36, 3460 (1962).
[CrossRef]

1961 (1)

H. P. Broida, Y. Tanaka, J. Chem. Phys. 36, 236 (1961).
[CrossRef]

1960 (1)

M. Ogawa, Y. Tanaka, J. Chem. Phys. 32, 754 (1960).
[CrossRef]

1959 (3)

M. Ogawa, Y. Tanaka, J. Chem. Phys. 30, 1354 (1959).
[CrossRef]

Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
[CrossRef]

G. J. Schultz, Phys. Rev. 116, 1141 (1959).
[CrossRef]

1958 (1)

F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
[CrossRef]

1937 (1)

A. Budó, Z. Phys. 105, 579 (1937).
[CrossRef]

1935 (1)

D. T. Stewart, Proc. Phys. Soc. (London) A68, 404 (1935).

Ali, A. W.

A. W. Ali, Appl. Opt. 8, 993 (1969).
[CrossRef] [PubMed]

A. W. Ali, A. C. Kolb, A. D. Anderson, Appl. Opt. 6, 2115 (1967).
[CrossRef] [PubMed]

J. D. Shipman, A. C. Kolb, A. D. Anderson, A. W. Ali, U.S. Naval Research Laboratory Rept. 6444 (1966).

A. W. Ali, A. D. Anderson, U.S. Naval Research Laboratory Report 6571 (1967).

Allen, L.

L. Allen, D. G. C. Jones, B. M. Sivaram, Phys. Lett. 25A, 280 (1967).

Altman, D. E.

M. Geller, D. E. Altman, T. A. De Temple, Appl. Opt. 2232 (1968).

Anderson, A. D.

A. W. Ali, A. C. Kolb, A. D. Anderson, Appl. Opt. 6, 2115 (1967).
[CrossRef] [PubMed]

J. D. Shipman, A. C. Kolb, A. D. Anderson, A. W. Ali, U.S. Naval Research Laboratory Rept. 6444 (1966).

A. W. Ali, A. D. Anderson, U.S. Naval Research Laboratory Report 6571 (1967).

Andrade, O.

Arechi, F. T.

F. T. Arechi, in Quantum Electronics III, P. Grivet, N. Bloembergen, Eds., (Columbia U. P., New York, 1964), p.547.

Bennett, W. R.

W. R. Bennett, Appl. Opt. Suppl. 2, 3 (1965).

Bockasten, K.

Brennen, W.

W. Brennen, J. Chem. Phys. 44, 1793 (1966).
[CrossRef]

Broida, H. P.

H. P. Broida, Y. Tanaka, J. Chem. Phys. 36, 236 (1961).
[CrossRef]

Brömer, H. H.

H. H. Brömer, J. Hesse, Z. Phys. 219, 269 (1969).
[CrossRef]

Budó, A.

A. Budó, Z. Phys. 105, 579 (1937).
[CrossRef]

Carleton, N. P.

N. P. Carleton, O. Oldenberg, J. Chem. Phys. 36, 3460 (1962).
[CrossRef]

Clúa, A. L.

D. Goorvitch, F. P. J. Valero, A. L. Clúa, J. Opt. Soc. Am. 58, 971 (1969).

De Temple, T. A.

M. Geller, D. E. Altman, T. A. De Temple, Appl. Opt. 2232 (1968).

Dieke, G. H.

G. H. Dieke, D. F. Heath, Johns Hopkins Spectroscopic Rept. 17 (1959).

Foner, S. N.

S. N. Foner, R. L. Hudson, J. Chem. Phys. 45, 40 (1966).
[CrossRef]

Gallardo, M.

M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).

C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
[CrossRef]

M. Gallardo, C. A. Massone, M. Garavaglia, Appl. Opt. 7, 2418 (1968).
[CrossRef] [PubMed]

O. Andrade, M. Gallardo, K. Bockasten, Appl. Opt. 6, 2006 (1967).
[CrossRef] [PubMed]

Garavaglia, M.

C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
[CrossRef]

M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).

M. Gallardo, C. A. Massone, M. Garavaglia, Appl. Opt. 7, 2418 (1968).
[CrossRef] [PubMed]

Gaydon, A. G.

R. W. B. Pearse, A. G. Gaydon, The Identification of Molecular Spectra (Chapman and Hall, London, 1941).

Geller, M.

M. Geller, D. E. Altman, T. A. De Temple, Appl. Opt. 2232 (1968).

Gerry, E. T.

E. T. Gerry, Appl. Phys. Lett. 7, 6 (1965).
[CrossRef]

Goorvitch, D.

D. Goorvitch, F. P. J. Valero, A. L. Clúa, J. Opt. Soc. Am. 58, 971 (1969).

Hall, R. I.

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

Heard, H.

H. Heard, Nature 200, 667 (1963).
[CrossRef]

Heath, D. F.

G. H. Dieke, D. F. Heath, Johns Hopkins Spectroscopic Rept. 17 (1959).

Hesse, J.

H. H. Brömer, J. Hesse, Z. Phys. 219, 269 (1969).
[CrossRef]

Hudson, R. L.

S. N. Foner, R. L. Hudson, J. Chem. Phys. 45, 40 (1966).
[CrossRef]

Jannuzzi, N.

N. Jannuzzi (1971) Instituto de Física, Universidade Estadual de Campinas, SP, Brazil, private communication.

Javan, A.

J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
[CrossRef]

Jones, D. G. C.

L. Allen, D. G. C. Jones, B. M. Sivaram, Phys. Lett. 25A, 280 (1967).

Jursa, A.

Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
[CrossRef]

F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
[CrossRef]

Kaslin, V. M.

V. M. Kaslin, G. G. Petrash, Zh. Eksp. Teor. Fiz. 54, 1051 (1968) [Sov. Phys. JETP 27, 561 (1968)].

V. M. Kaslin, G. G. Petrash, JETP Lett. 3, 55 (1966).

Kasuya, T.

Kenty, C.

C. Kenty, in Proceedings of the 3rd International Conference on the Physics of Electronic and Atomic Collisions, M. R. C. McDowell, Ed., North-Holland, Amsterdam, 1964.

Knyazev, I. N.

I. N. Knyazev, Zh. Prikl. Spektrosk. 5, 178 (1966).

Kolb, A. C.

A. W. Ali, A. C. Kolb, A. D. Anderson, Appl. Opt. 6, 2115 (1967).
[CrossRef] [PubMed]

J. D. Shipman, A. C. Kolb, IEEE J. Quantum Electron. QE-2, 298 (1966).

J. D. Shipman, A. C. Kolb, A. D. Anderson, A. W. Ali, U.S. Naval Research Laboratory Rept. 6444 (1966).

Le Blanc, F.

Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
[CrossRef]

F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
[CrossRef]

Leonard, D. A.

D. A. Leonard, Appl. Phys. Lett. 7, 4 (1965).
[CrossRef]

Lide, D. R.

Lund, R. E.

R. E. Lund, H. J. Oskam, Z. Phys. 219, 131 (1969).
[CrossRef]

Massey, H. S. W.

N. F. Mott, H. S. W. Massey, The Theory of Atomic Collisions (Clarendon Press, Oxford, 1965), Chap. 12.

Massone, C. A.

M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).

C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
[CrossRef]

M. Gallardo, C. A. Massone, M. Garavaglia, Appl. Opt. 7, 2418 (1968).
[CrossRef] [PubMed]

C. A. Massone (1969), Department of Physics, Lund Institute of Technology, Sweden, private communication.

Mathias, L. E. S.

L. E. S. Mathias, J. T. ParkerAppl. Phys. Lett. 3, 16 (1963).
[CrossRef]

Mazeau, J.

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

McConkey, J. W.

J. W. McConkey, F. R. Simpson, J. Phys. B 2, 923 (1969).
[CrossRef]

Mott, N. F.

N. F. Mott, H. S. W. Massey, The Theory of Atomic Collisions (Clarendon Press, Oxford, 1965), Chap. 12.

Ogawa, M.

M. Ogawa, Y. Tanaka, J. Chem. Phys. 32, 754 (1960).
[CrossRef]

M. Ogawa, Y. Tanaka, J. Chem. Phys. 30, 1354 (1959).
[CrossRef]

Oldenberg, O.

N. P. Carleton, O. Oldenberg, J. Chem. Phys. 36, 3460 (1962).
[CrossRef]

Oskam, H. J.

R. E. Lund, H. J. Oskam, Z. Phys. 219, 131 (1969).
[CrossRef]

Parker, J. T.

L. E. S. Mathias, J. T. ParkerAppl. Phys. Lett. 3, 16 (1963).
[CrossRef]

Parks, J. H.

J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
[CrossRef]

Patel, C. K. N.

C. K. N. Patel, Phys. Rev. 141, 71 (1966).
[CrossRef]

Pearse, R. W. B.

R. W. B. Pearse, A. G. Gaydon, The Identification of Molecular Spectra (Chapman and Hall, London, 1941).

Petrash, G. G.

V. M. Kaslin, G. G. Petrash, Zh. Eksp. Teor. Fiz. 54, 1051 (1968) [Sov. Phys. JETP 27, 561 (1968)].

V. M. Kaslin, G. G. Petrash, JETP Lett. 3, 55 (1966).

G. G. Petrash, Zh. Prikl. Spektrosk. 4, 395 (1966).

Ramachandra Rao, D.

J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
[CrossRef]

Reinhardt, J.

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

Schermann, C.

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

Schultz, G. J.

G. J. Schultz, Phys. Rev. 116, 1141 (1959).
[CrossRef]

Shipman, J. D.

J. D. Shipman, Appl. Phys. Lett. 10, 3 (1967).
[CrossRef]

J. D. Shipman, A. C. Kolb, IEEE J. Quantum Electron. QE-2, 298 (1966).

J. D. Shipman, A. C. Kolb, A. D. Anderson, A. W. Ali, U.S. Naval Research Laboratory Rept. 6444 (1966).

Simpson, F. R.

J. W. McConkey, F. R. Simpson, J. Phys. B 2, 923 (1969).
[CrossRef]

Sivaram, B. M.

L. Allen, D. G. C. Jones, B. M. Sivaram, Phys. Lett. 25A, 280 (1967).

Skubenich, V. V.

I. P. Zapesochuyi, V. V. Skubenich, Opt. Spektrosk. 21, 140 (1966) [Opt. Spectrosc. 21, 83 (1966)].

St. John, R. M.

Stanton, P. N.

Stewart, D. T.

D. T. Stewart, Proc. Phys. Soc. (London) A68, 404 (1935).

Tanaka, Y.

H. P. Broida, Y. Tanaka, J. Chem. Phys. 36, 236 (1961).
[CrossRef]

M. Ogawa, Y. Tanaka, J. Chem. Phys. 32, 754 (1960).
[CrossRef]

M. Ogawa, Y. Tanaka, J. Chem. Phys. 30, 1354 (1959).
[CrossRef]

Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
[CrossRef]

F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
[CrossRef]

Valero, F. P. J.

D. Goorvitch, F. P. J. Valero, A. L. Clúa, J. Opt. Soc. Am. 58, 971 (1969).

F. P. J. Valero, J. Opt. Soc. Am. 58, 1048 (1968).
[CrossRef]

Zapesochuyi, I. P.

I. P. Zapesochuyi, V. V. Skubenich, Opt. Spektrosk. 21, 140 (1966) [Opt. Spectrosc. 21, 83 (1966)].

Appl. Opt. (6)

Appl. Opt. Suppl. (1)

W. R. Bennett, Appl. Opt. Suppl. 2, 3 (1965).

Appl. Phys. Lett. (5)

J. H. Parks, D. Ramachandra Rao, A. Javan, Appl. Phys. Lett. 13, 142 (1968).
[CrossRef]

D. A. Leonard, Appl. Phys. Lett. 7, 4 (1965).
[CrossRef]

J. D. Shipman, Appl. Phys. Lett. 10, 3 (1967).
[CrossRef]

E. T. Gerry, Appl. Phys. Lett. 7, 6 (1965).
[CrossRef]

L. E. S. Mathias, J. T. ParkerAppl. Phys. Lett. 3, 16 (1963).
[CrossRef]

IEEE J. Quantum Electron. (2)

J. D. Shipman, A. C. Kolb, IEEE J. Quantum Electron. QE-2, 298 (1966).

C. A. Massone, M. Garavaglia, M. Gallardo, IEEE J. Quantum Electron. QE-5, 553 (1969).
[CrossRef]

J. Chem. Phys. (8)

F. Le Blanc, Y. Tanaka, A. Jursa, J. Chem. Phys. 28, 979 (1958).
[CrossRef]

M. Ogawa, Y. Tanaka, J. Chem. Phys. 30, 1354 (1959).
[CrossRef]

Y. Tanaka, F. Le Blanc, A. Jursa, J. Chem. Phys. 30, 1624 (1959).
[CrossRef]

M. Ogawa, Y. Tanaka, J. Chem. Phys. 32, 754 (1960).
[CrossRef]

H. P. Broida, Y. Tanaka, J. Chem. Phys. 36, 236 (1961).
[CrossRef]

N. P. Carleton, O. Oldenberg, J. Chem. Phys. 36, 3460 (1962).
[CrossRef]

W. Brennen, J. Chem. Phys. 44, 1793 (1966).
[CrossRef]

S. N. Foner, R. L. Hudson, J. Chem. Phys. 45, 40 (1966).
[CrossRef]

J. Opt. Soc. Am. (3)

J. Phys. B (2)

J. W. McConkey, F. R. Simpson, J. Phys. B 2, 923 (1969).
[CrossRef]

R. I. Hall, J. Mazeau, J. Reinhardt, C. Schermann, J. Phys. B 3, 991 (1970).
[CrossRef]

JETP Lett. (1)

V. M. Kaslin, G. G. Petrash, JETP Lett. 3, 55 (1966).

Nature (1)

H. Heard, Nature 200, 667 (1963).
[CrossRef]

Opt. Spektrosk. (1)

I. P. Zapesochuyi, V. V. Skubenich, Opt. Spektrosk. 21, 140 (1966) [Opt. Spectrosc. 21, 83 (1966)].

Phys. Lett. (2)

L. Allen, D. G. C. Jones, B. M. Sivaram, Phys. Lett. 25A, 280 (1967).

M. Garavaglia, M. Gallardo, C. A. Massone, Phys. Lett. 28A, 787 (1969).

Phys. Rev. (2)

G. J. Schultz, Phys. Rev. 116, 1141 (1959).
[CrossRef]

C. K. N. Patel, Phys. Rev. 141, 71 (1966).
[CrossRef]

Proc. Phys. Soc. (London) (1)

D. T. Stewart, Proc. Phys. Soc. (London) A68, 404 (1935).

Z. Phys. (3)

A. Budó, Z. Phys. 105, 579 (1937).
[CrossRef]

R. E. Lund, H. J. Oskam, Z. Phys. 219, 131 (1969).
[CrossRef]

H. H. Brömer, J. Hesse, Z. Phys. 219, 269 (1969).
[CrossRef]

Zh. Eksp. Teor. Fiz. (1)

V. M. Kaslin, G. G. Petrash, Zh. Eksp. Teor. Fiz. 54, 1051 (1968) [Sov. Phys. JETP 27, 561 (1968)].

Zh. Prikl. Spektrosk. (2)

I. N. Knyazev, Zh. Prikl. Spektrosk. 5, 178 (1966).

G. G. Petrash, Zh. Prikl. Spektrosk. 4, 395 (1966).

Other (9)

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A. W. Ali, A. D. Anderson, U.S. Naval Research Laboratory Report 6571 (1967).

C. Kenty, in Proceedings of the 3rd International Conference on the Physics of Electronic and Atomic Collisions, M. R. C. McDowell, Ed., North-Holland, Amsterdam, 1964.

G. H. Dieke, D. F. Heath, Johns Hopkins Spectroscopic Rept. 17 (1959).

N. F. Mott, H. S. W. Massey, The Theory of Atomic Collisions (Clarendon Press, Oxford, 1965), Chap. 12.

R. W. B. Pearse, A. G. Gaydon, The Identification of Molecular Spectra (Chapman and Hall, London, 1941).

C. A. Massone (1969), Department of Physics, Lund Institute of Technology, Sweden, private communication.

N. Jannuzzi (1971) Instituto de Física, Universidade Estadual de Campinas, SP, Brazil, private communication.

F. T. Arechi, in Quantum Electronics III, P. Grivet, N. Bloembergen, Eds., (Columbia U. P., New York, 1964), p.547.

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Figures (9)

Fig. 1
Fig. 1

(a) Positive reproduction of the spectrogram of the 3-3 (9599 Å) ir laser band. (b) Part of the spectrogram of the 0-0 (3371 Å) uv laser band. Slit width 8μ m. A typical Λ-doublet in the P1 branch is shown.

Fig. 2
Fig. 2

Partial Fortrat parabolas of the P1 and P1′ branches of the 0-0 uv laser band. Curves are drawn in accordance with the values of the present work. Points represent the values given by Parks et al.22 which were assigned by them as belonging to a single Fortrat parabola.

Fig. 3
Fig. 3

Typical Λ-doublet observed in the 0-0 uv laser band. The photographic reproduction of the P1′ − 5 and P1 − 5 Λ components is shown together with the densitometer trace. The P1′ − 3 line is located to the right.

Fig. 4
Fig. 4

Positive reproduction of the 2-1 ir laser band spectrogram. The laser tube was (a) at liquid air and (b) at room temperatures.

Fig. 5
Fig. 5

Intensity distribution in both P1 and P1′ Λ-doublets of the 0-0 uv band.

Fig. 6
Fig. 6

Time history chart of the gas excitation and observation of the spontaneous and stimulated uv and ir emissions, together with the formation of N atoms and N2+ molecules (see the text).

Fig. 7
Fig. 7

Variation of the i(K) exp(−Er/kT) factor as a function of K for several branches of the 1-0 ir band. Calculations were made taken into account temperature. The best fit between calculation and experiment corresponds to T = 100 K and T = 365 K.

Fig. 8
Fig. 8

Variation of the i(K) exp(−Er/kT) factor as a function of K for the P1, P3, and Q3 branches of the 0-0 uv band. The best fit between calculation and experiment when temperature was taken into account, as obtained at T = 100 K and T = 365 K.

Fig. 9
Fig. 9

Laser uv and ir intensities as a function of the nitrogen pressure and density of the gas.

Tables (4)

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Table I Stimulated Emission Lines of the First Positive System

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Table II Stimulated Emission Lines of the Second Positive System

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Table III Comparison Between the First and Second Differences in the P3 Branch of the 0-0 Ultraviolet Band

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Table IV Molecule-Molecule Collision Frequency Calculated from Sutherland’s Equation

Equations (1)

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i ( K ) × exp [ E r / ( K T ) ]

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