Abstract

A summary is presented of the methods and apparatus used ill the spectroscopic laboratories of the National Research Council for the study of electronic spectra of diatomic and polyatomic molecules including especially the study of short-lived species (free radicals). Three methods, the flash photolysis technique, the flash discharge technique, and the fast pumping of the parent compound through a high frequency discharge have been particularly useful in producing new spectra of short-lived molecules and in improving our knowledge of known spectra.

© 1967 Optical Society of America

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References

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  1. A. E. Douglas, J. C. Potter, Appl. Opt. 1, 727 (1962).
    [CrossRef]
  2. A. E. Douglas, G. Herzberg, J. Opt. Soc. Am. 47, 625 (1957).
    [CrossRef]
  3. G. Herzberg, in Proceedings of the International Spectroscopy Conference Bombay (1967) (in press).
  4. F. Creutzberg, Can. J. Phys. 44, 1583 (1966).
    [CrossRef]
  5. A. E. Douglas, W. E. Jones, Can. J. Phys. 44, 2251 (1966).
    [CrossRef]
  6. J. U. White, J. Opt. Soc. Am. 32, 285 (1942).
    [CrossRef]
  7. H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
    [CrossRef]
  8. B. P. Stoicheff, Can. J. Phys. 32, 330 (1954).
    [CrossRef]
  9. A. E. Douglas Earl, R. V. Milton, J. Chem. Phys. 41, 357 (1964).
    [CrossRef]
  10. A. F. Buckingham, D. A. Ramsay, J. Chem. Phys. 42, 3721 (1965).
    [CrossRef]

1966

F. Creutzberg, Can. J. Phys. 44, 1583 (1966).
[CrossRef]

A. E. Douglas, W. E. Jones, Can. J. Phys. 44, 2251 (1966).
[CrossRef]

1965

A. F. Buckingham, D. A. Ramsay, J. Chem. Phys. 42, 3721 (1965).
[CrossRef]

1964

A. E. Douglas Earl, R. V. Milton, J. Chem. Phys. 41, 357 (1964).
[CrossRef]

1962

1957

1954

B. P. Stoicheff, Can. J. Phys. 32, 330 (1954).
[CrossRef]

1948

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

1942

Bernstein, H. J.

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

Buckingham, A. F.

A. F. Buckingham, D. A. Ramsay, J. Chem. Phys. 42, 3721 (1965).
[CrossRef]

Creutzberg, F.

F. Creutzberg, Can. J. Phys. 44, 1583 (1966).
[CrossRef]

Douglas, A. E.

Douglas Earl, A. E.

A. E. Douglas Earl, R. V. Milton, J. Chem. Phys. 41, 357 (1964).
[CrossRef]

Herzberg, G.

A. E. Douglas, G. Herzberg, J. Opt. Soc. Am. 47, 625 (1957).
[CrossRef]

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

G. Herzberg, in Proceedings of the International Spectroscopy Conference Bombay (1967) (in press).

Jones, W. E.

A. E. Douglas, W. E. Jones, Can. J. Phys. 44, 2251 (1966).
[CrossRef]

Milton, R. V.

A. E. Douglas Earl, R. V. Milton, J. Chem. Phys. 41, 357 (1964).
[CrossRef]

Potter, J. C.

Ramsay, D. A.

A. F. Buckingham, D. A. Ramsay, J. Chem. Phys. 42, 3721 (1965).
[CrossRef]

Stoicheff, B. P.

B. P. Stoicheff, Can. J. Phys. 32, 330 (1954).
[CrossRef]

White, J. U.

Appl. Opt.

Can. J. Phys.

F. Creutzberg, Can. J. Phys. 44, 1583 (1966).
[CrossRef]

A. E. Douglas, W. E. Jones, Can. J. Phys. 44, 2251 (1966).
[CrossRef]

B. P. Stoicheff, Can. J. Phys. 32, 330 (1954).
[CrossRef]

J. Chem. Phys.

A. E. Douglas Earl, R. V. Milton, J. Chem. Phys. 41, 357 (1964).
[CrossRef]

A. F. Buckingham, D. A. Ramsay, J. Chem. Phys. 42, 3721 (1965).
[CrossRef]

H. J. Bernstein, G. Herzberg, J. Chem. Phys. 16, 30 (1948).
[CrossRef]

J. Opt. Soc. Am.

Other

G. Herzberg, in Proceedings of the International Spectroscopy Conference Bombay (1967) (in press).

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Figures (2)

Fig. 1
Fig. 1

Flash photolysis apparatus: C1—large condensers, C2—2-μF condenser, D1—quartz discharge tube, D2—Lyman flash lamp, E—electronic time delay, G—triggered spark gap, M—White-type multiple reflection mirrors, P—photocell, S—spectrograph slit, T—quartz absorption cell.

Fig. 2
Fig. 2

Apparatus for fast pumping experiments. This apparatus may be used for work in emission or absorption but is shown here as set up to observe the emission spectrum of NF.

Tables (1)

Tables Icon

Table I Some of the Spectra Observed by Various Techniquesa

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