Abstract

The pressure shifts and broadenings of 25 lines of Kr i in the visible and near infrared have been measured with krypton at pressures up to 13 Torr and with helium at pressures up to 30 Torr at a temperature of approximately 340 K. The shifts that are due to krypton either are to lower wave numbers or are too small to be measured, whereas those shifts that are due to helium are all to higher wave numbers. Seven of the infrared lines and one visible line have the large (resonance) broadening associated with that type of line whose lower level combines with the ground state of the atom.

© 1981 Optical Society of America

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References

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  1. F. S. Tomkins and M. Fred, “Photoelectric device for a spectrum plate comparator,” J. Opt. Soc. Am. 41, 641–43 (1951).
    [CrossRef]
  2. J. M. Vaughan, “Self-broadening and the resonance oscillator strengths in krypton,” Phys. Rev. 166, 13–16 (1968).
    [CrossRef]
  3. D. A. Jackson, “Pressure shifts and broadenings in the arc spectrum of xenon,” J. Opt. Soc. Am. 66, 1014–1018 (1976).
    [CrossRef]
  4. D. A. Jackson, “Isotope shifts in visible lines of the arc spectrum of krypton,” J. Opt. Soc. Am. 70, 1139–1144 (1980).
    [CrossRef]
  5. D. A. Jackson, “Isotope shifts in the near infrared lines of the arc spectrum of krypton,” J. Opt. Soc. Am. 69, 505–511 (1979).
    [CrossRef]
  6. D. A. Jackson and M. C. Coulombe, “Isotope shifts in the arc spectrum of xenon,” Proc. R. Soc. London Ser. A 338, 270–290 (1974).
  7. S.-Y. Chen and M. Takeo, “Broadening and shifts of spectral lines,” Rev. Mod. Phys. 29, 20–73 (1957).

1980 (1)

1979 (1)

D. A. Jackson, “Isotope shifts in the near infrared lines of the arc spectrum of krypton,” J. Opt. Soc. Am. 69, 505–511 (1979).
[CrossRef]

1976 (1)

1974 (1)

D. A. Jackson and M. C. Coulombe, “Isotope shifts in the arc spectrum of xenon,” Proc. R. Soc. London Ser. A 338, 270–290 (1974).

1968 (1)

J. M. Vaughan, “Self-broadening and the resonance oscillator strengths in krypton,” Phys. Rev. 166, 13–16 (1968).
[CrossRef]

1957 (1)

S.-Y. Chen and M. Takeo, “Broadening and shifts of spectral lines,” Rev. Mod. Phys. 29, 20–73 (1957).

1951 (1)

Chen, S.-Y.

S.-Y. Chen and M. Takeo, “Broadening and shifts of spectral lines,” Rev. Mod. Phys. 29, 20–73 (1957).

Coulombe, M. C.

D. A. Jackson and M. C. Coulombe, “Isotope shifts in the arc spectrum of xenon,” Proc. R. Soc. London Ser. A 338, 270–290 (1974).

Fred, M.

Jackson, D. A.

D. A. Jackson, “Isotope shifts in visible lines of the arc spectrum of krypton,” J. Opt. Soc. Am. 70, 1139–1144 (1980).
[CrossRef]

D. A. Jackson, “Isotope shifts in the near infrared lines of the arc spectrum of krypton,” J. Opt. Soc. Am. 69, 505–511 (1979).
[CrossRef]

D. A. Jackson, “Pressure shifts and broadenings in the arc spectrum of xenon,” J. Opt. Soc. Am. 66, 1014–1018 (1976).
[CrossRef]

D. A. Jackson and M. C. Coulombe, “Isotope shifts in the arc spectrum of xenon,” Proc. R. Soc. London Ser. A 338, 270–290 (1974).

Takeo, M.

S.-Y. Chen and M. Takeo, “Broadening and shifts of spectral lines,” Rev. Mod. Phys. 29, 20–73 (1957).

Tomkins, F. S.

Vaughan, J. M.

J. M. Vaughan, “Self-broadening and the resonance oscillator strengths in krypton,” Phys. Rev. 166, 13–16 (1968).
[CrossRef]

J. Opt. Soc. Am. (4)

Phys. Rev. (1)

J. M. Vaughan, “Self-broadening and the resonance oscillator strengths in krypton,” Phys. Rev. 166, 13–16 (1968).
[CrossRef]

Proc. R. Soc. London Ser. A (1)

D. A. Jackson and M. C. Coulombe, “Isotope shifts in the arc spectrum of xenon,” Proc. R. Soc. London Ser. A 338, 270–290 (1974).

Rev. Mod. Phys. (1)

S.-Y. Chen and M. Takeo, “Broadening and shifts of spectral lines,” Rev. Mod. Phys. 29, 20–73 (1957).

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Figures (2)

Fig. 1
Fig. 1

Diagram of energy levels of Kr i.

Fig. 2
Fig. 2

(a) Setting with double images coinciding, Y1 deflection for the intensity of the maximum of the fringe. (b) Setting displaced so that the wings of the contours of the images cut at Y2, the deflection for half the intensity of the maximum. The horizontal line in (a) and (b) is zero deflection (transmission zero); the upper horizontal trace is the deflection given by the unexposed part of the plate. (There are doublings in this trace because the time for photographing the oscilloscope traces was longer than the oscilloscope sweep time.)

Tables (4)

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Table 1 Pressure Shifts and Broadenings of Lines of Kr i That Are Due to Kr and to He (mK/Torr at 340 K)a

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Table 2 Observed Intensities of Minima of Fringes with a 30-mm Étalon and 13-Torr Krypton Pressure and Calculated Intensities Assuming Lorentz Broadening

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Table 3 Comparison of Pressure Shifts and Broadenings in Kr i by Krypton and Helium as Measured by Vaughana and Measured in this Work (mK at density 1017 atoms/cm3)

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Table 4 Pressure Shifts by Krypton and Helium of Levels of Kr i (mK/Torr at 340 K)

Equations (3)

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k [ ( D + s ) 2 - ( D - s ) 2 ] = 4 k D s ,
k = 10 4 / 2 t [ ( D n + 1 ) 2 - ( D n ) 2 ] ,
I ( min ) I ( max ) = 2 1 + ( x / a ) 2 ,