Abstract

The excitation of lines forbidden by the Laporte rule and corresponding to transitions between levels, all belonging to the ground configuration, was studied for the elements of the fifth group. The short-wave experimental technique developed permits the recognition of these multipole lines without any knowledge of the spectra investigated, from their behavior at the changeover point of the discharge. Neutral multipole spectra of Bi, Sb, As, and P (<i>s</i><sup>2</sup><i>p</i><sup>3</sup> configuration) were obtained with decreasing intensity in the order listed as well as singly ionized spectra of Bi and Sb (<i>s</i><sup>2</sup><i>p</i><sup>2</sup> configuration). Interesting changes in relative intensities of lines, in particular of the pair <sup>2</sup><i>P</i><sub>3/2</sub>,<sub>½</sub> → <sup>4</sup><i>S</i><sub>3/2</sub> were noted, and an anomalous effect for lines originating from the <sup>2</sup><i>P</i><sub>3/2</sub><sup>0</sup> level in bismuth observed. A high resolution study of lines in Sb and As gave previously unknown hf separations of levels <sup>3</sup><i>P</i><sub>1</sub>, of Sb II, <sup>2</sup><i>P</i><sub>½</sub><sup>0</sup> of As I and upper limits for those of the levels <sup>2</sup><i>P</i><sub>3/2</sub><sup>0</sup> and <sup>4</sup><i>S</i><sub>3/2</sub><sup>0</sup> of As I.

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  1. S. Mrozowski, Rev. Mod. Phys. 16, 153 (1944).
  2. S. Mrozowski, Phys. Rev. 58, 1086 (1940).
  3. S. Mrozowski, Phys. Rev. 69, 169 (1946).
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  5. S. Mrozowski, J. Opt. Soc. Am. 46, 663 (1956).
  6. W. C. Martin and J. L. Tech, J. Opt. Soc. Am. 51, 591 (1961).
  7. Papers on band spectra of SbO, AsO, and PO as wvell as on Sb2, As2, and P2 are in preparation.
  8. C. D. Cole, J. Opt. Soc. Am. 54, 859 (1964).
  9. F. A. Jenkins and S. Mrozowski, Phys. Rev. 60, 225 (1941).
  10. S. Mrozowski, Phys. Rev. 62, 526 (1942).
  11. G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).
  12. C. D. Cole and S. Mrozowski, Phys. Rev. 93, 933 (1954).
  13. J. S. Badami, Z. Physik 79, 224 (1932).
  14. P. C. B. Fernando et al., Phil. Mag. 5, 1291 (1960).

Aller, L. H.

G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).

Badami, J. S.

J. S. Badami, Z. Physik 79, 224 (1932).

Baker, J. G.

G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).

Cole, C. D.

C. D. Cole, J. Opt. Soc. Am. 54, 859 (1964).

C. D. Cole and S. Mrozowski, Phys. Rev. 93, 933 (1954).

Fernando, P. C. B.

P. C. B. Fernando et al., Phil. Mag. 5, 1291 (1960).

Jenkins, F. A.

F. A. Jenkins and S. Mrozowski, Phys. Rev. 60, 225 (1941).

Martin, W. C.

W. C. Martin and J. L. Tech, J. Opt. Soc. Am. 51, 591 (1961).

Menzel, D. H.

G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).

Mrozowski, S.

F. A. Jenkins and S. Mrozowski, Phys. Rev. 60, 225 (1941).

S. Mrozowski, J. Opt. Soc. Am. 46, 663 (1956).

S. Mrozowski, Phys. Rev. 58, 1086 (1940).

S. Mrozowski, Phys. Rev. 69, 169 (1946).

C. D. Cole and S. Mrozowski, Phys. Rev. 93, 933 (1954).

S. Mrozowski, Phys. Rev. 62, 526 (1942).

S. Mrozowski, Rev. Mod. Phys. 16, 153 (1944).

Rubinowicz, A.

A. Rubinowicz, Rept. Progr. Phys. 12, 233 (1949); or J. Phys. Radium 10, 33D (1949).

Shortley, G. H.

G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).

Tech, J. L.

W. C. Martin and J. L. Tech, J. Opt. Soc. Am. 51, 591 (1961).

Other (14)

S. Mrozowski, Rev. Mod. Phys. 16, 153 (1944).

S. Mrozowski, Phys. Rev. 58, 1086 (1940).

S. Mrozowski, Phys. Rev. 69, 169 (1946).

A. Rubinowicz, Rept. Progr. Phys. 12, 233 (1949); or J. Phys. Radium 10, 33D (1949).

S. Mrozowski, J. Opt. Soc. Am. 46, 663 (1956).

W. C. Martin and J. L. Tech, J. Opt. Soc. Am. 51, 591 (1961).

Papers on band spectra of SbO, AsO, and PO as wvell as on Sb2, As2, and P2 are in preparation.

C. D. Cole, J. Opt. Soc. Am. 54, 859 (1964).

F. A. Jenkins and S. Mrozowski, Phys. Rev. 60, 225 (1941).

S. Mrozowski, Phys. Rev. 62, 526 (1942).

G. H. Shortley, L. H. Aller, J. G. Baker, and D. H. Menzel, Astrophys. J. 93, 178 (1941).

C. D. Cole and S. Mrozowski, Phys. Rev. 93, 933 (1954).

J. S. Badami, Z. Physik 79, 224 (1932).

P. C. B. Fernando et al., Phil. Mag. 5, 1291 (1960).

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