Abstract

A simple model of a flame is presented which reflects the characteristic requirements for the onset of laser action. A numerical example is given to demonstrate that a reasonable choice of the parameters used in the model leads to attainable pumping conditions. The reaction zone of low-pressure oxyacetylene flames is thought to be a suitable source of excitation of atoms and molecules. Excitation conditions of interesting species in this type of flames are discussed briefly together with recent experimental results.

© 1965 Optical Society of America

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References

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  1. J. C. Polanyi, J. Quant. Spectry. Radiative Transfer 3, 471 (1963).
    [CrossRef]
  2. R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
    [CrossRef]
  3. A. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958).
    [CrossRef]
  4. R. Bleekrode, W. C. Nieuwpoort, Phys. Letters 12, 204 (1964).
    [CrossRef]
  5. A. G. Gaydon, The Spectroscopy of Flames (Chapman and Hall, London, 1957).
  6. A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

1964 (1)

R. Bleekrode, W. C. Nieuwpoort, Phys. Letters 12, 204 (1964).
[CrossRef]

1963 (1)

J. C. Polanyi, J. Quant. Spectry. Radiative Transfer 3, 471 (1963).
[CrossRef]

1962 (1)

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

1960 (1)

A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

1958 (1)

A. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958).
[CrossRef]

Barger, R. L.

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

Bleekrode, R.

R. Bleekrode, W. C. Nieuwpoort, Phys. Letters 12, 204 (1964).
[CrossRef]

Broida, H. P.

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

Estin, A. J.

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

Gaydon, A. G.

A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

A. G. Gaydon, The Spectroscopy of Flames (Chapman and Hall, London, 1957).

Nieuwpoort, W. C.

R. Bleekrode, W. C. Nieuwpoort, Phys. Letters 12, 204 (1964).
[CrossRef]

Polanyi, J. C.

J. C. Polanyi, J. Quant. Spectry. Radiative Transfer 3, 471 (1963).
[CrossRef]

Radford, H. E.

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

Schawlow, A.

A. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958).
[CrossRef]

Spokes, G. N.

A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

Townes, C. H.

A. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958).
[CrossRef]

van Suchtelen, J.

A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

J. Quant. Spectry. Radiative Transfer (1)

J. C. Polanyi, J. Quant. Spectry. Radiative Transfer 3, 471 (1963).
[CrossRef]

Phys. Letters (1)

R. Bleekrode, W. C. Nieuwpoort, Phys. Letters 12, 204 (1964).
[CrossRef]

Phys. Rev. (1)

A. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958).
[CrossRef]

Phys. Rev. Letters (1)

R. L. Barger, H. P. Broida, A. J. Estin, H. E. Radford, Phys. Rev. Letters 9, 345 (1962).
[CrossRef]

Proc. Roy. Soc. (London) (1)

A. G. Gaydon, G. N. Spokes, J. van Suchtelen, Proc. Roy. Soc. (London) A256, 323 (1960).

Other (1)

A. G. Gaydon, The Spectroscopy of Flames (Chapman and Hall, London, 1957).

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Equations (5)

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A + B k 1 C 1 + . . . , A + B k 2 C 2 + . . . ,
( n 2 n 1 n 0 ) max ( f 2 f 1 ) τ m τ m + τ p 1 τ 12 [ τ m τ p ln ( 1 + τ m τ p ) ] ,
n 2 n 1 Δ N osc ,
Δ N osc = 8 π c 1 r l τ 12 σ 3 Δ σ σ ,
f 2 f 1 Δ N osc n 0 τ p + τ m τ m + τ p + τ m τ 12 [ 1 τ p τ m ln ( 1 + τ m τ p ) ] .

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