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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 46, Iss. 3 — Mar. 1, 1956
  • pp: 182–185

Absorption Bands of Rubidium due to the Presence of Foreign Gases

SHANG-YI CH’EN, ROBERT B. BENNETT, and OLEG JEFIMENKO  »View Author Affiliations


JOSA, Vol. 46, Issue 3, pp. 182-185 (1956)
http://dx.doi.org/10.1364/JOSA.46.000182


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Abstract

In the presence of heavy foreign gases, such as Kr and Xe, diffused absorption bands were observed at both the short wavelength and the long wavelength side of the first four absorption doublets of the Rb principal series. The red bands were observable when the Rb vapor pressure in the absorption tube was relatively low (10-3 to 10-2. mm Hg). The violet bands were not intense enough until the Rb vapor pressure was increased to 0.1–1 mm Hg. With other lighter gases (H2, He, Ne, A, N2) only violet bands were observed. The positions and the absorption contours of the bands in relation to the member of the absorption series and to the nature of the foreign gases are discussed.

Citation
SHANG-YI CH’EN, ROBERT B. BENNETT, and OLEG JEFIMENKO, "Absorption Bands of Rubidium due to the Presence of Foreign Gases," J. Opt. Soc. Am. 46, 182-185 (1956)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-46-3-182


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References

  1. T. Z. Ny and S. Y. Ch'en, Nature 138, 1055 (1936); J. phys. radium 9, 169 (1938).
  2. S. Y. Ch'en, Phys. Rev. 65, 338 (1944).
  3. S. Y. Ch'en and C. S. Chang, Phys. Rev. 75, 82 (1949).
  4. The readings of the positions of the band appeared at the short wavelength side of the third member of sodium principal series in the presence of H2 and N2 as quoted in reference 2 were taken from T. S. Ke's M. S. thesis in 1940, and later were found to be in error [Chinese J. Phys. 7, 421, (1950)]. The positions of the band in the presence of H2, He2, N2, and Ne were measured again by Ch'en as 2848.5, 2848.9, 2849.7, and 2851.4 A respectively, giving, consequently, a separation between the band and the short wavelength component of the third doublet 4.3, 4.1, 4.0, and 1.4 A for the respective Na-foreign gas bands.
  5. The Rb-Kr bands were observed by means of a 35-foot grating spectrograph in Wadsworth mounting in search for fine structure. The result was negative.
  6. Such bands for Rb were first observed by Ch'en and Jefimenko when saturated hydrocarbons were used as foreign gases. A manuscript is in preparation.
  7. Spectrograms for the violet band at the second doublet of Rb principal series can be found in reference 1.
  8. W. M. Preston, Phys. Rev. 51, 298 (1937) and papers cited in his article.

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