Abstract

Design and performance are given of a multiple traversal low temperature absorption cell that operates routinely at a path length of 230 m. The system is comprised of an f/30-aperture White cell surrounded by an aluminum Dewar. The cell has been used in the temperature range 300–77 K and may be pressurized to 3 atm. Vacuum feedthrough adjustments are employed in order to correct for defocusing of the mirrors during the cooling process.

© 1968 Optical Society of America

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References

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  1. A. Watanabe, H. L. Welsh, Can. J. Phys. 45, 820 (1965).
  2. R. P. Blickensderfer, G. E. Ewing, J. Chem. Phys. 47, 331 (1967).
    [CrossRef]
  3. J. U. White, J. Opt. Soc. Amer. 32, 285 (1942).
    [CrossRef]
  4. V. I. Dianov-Klokov, Opt. Spectrosc. 16, 225 (1964).

1967 (1)

R. P. Blickensderfer, G. E. Ewing, J. Chem. Phys. 47, 331 (1967).
[CrossRef]

1965 (1)

A. Watanabe, H. L. Welsh, Can. J. Phys. 45, 820 (1965).

1964 (1)

V. I. Dianov-Klokov, Opt. Spectrosc. 16, 225 (1964).

1942 (1)

J. U. White, J. Opt. Soc. Amer. 32, 285 (1942).
[CrossRef]

Blickensderfer, R. P.

R. P. Blickensderfer, G. E. Ewing, J. Chem. Phys. 47, 331 (1967).
[CrossRef]

Dianov-Klokov, V. I.

V. I. Dianov-Klokov, Opt. Spectrosc. 16, 225 (1964).

Ewing, G. E.

R. P. Blickensderfer, G. E. Ewing, J. Chem. Phys. 47, 331 (1967).
[CrossRef]

Watanabe, A.

A. Watanabe, H. L. Welsh, Can. J. Phys. 45, 820 (1965).

Welsh, H. L.

A. Watanabe, H. L. Welsh, Can. J. Phys. 45, 820 (1965).

White, J. U.

J. U. White, J. Opt. Soc. Amer. 32, 285 (1942).
[CrossRef]

Can. J. Phys. (1)

A. Watanabe, H. L. Welsh, Can. J. Phys. 45, 820 (1965).

J. Chem. Phys. (1)

R. P. Blickensderfer, G. E. Ewing, J. Chem. Phys. 47, 331 (1967).
[CrossRef]

J. Opt. Soc. Amer. (1)

J. U. White, J. Opt. Soc. Amer. 32, 285 (1942).
[CrossRef]

Opt. Spectrosc. (1)

V. I. Dianov-Klokov, Opt. Spectrosc. 16, 225 (1964).

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Figures (5)

Fig. 1
Fig. 1

The SD–51 low temperature Dewar.

Fig. 2
Fig. 2

The optical system.

Fig. 3
Fig. 3

Detail of the mirror adjustment feedthroughs.

Fig. 4
Fig. 4

The low temperature, long path cell.

Fig. 5
Fig. 5

Spectrum of oxygen gas near 12,600 Å. The cell temperature is 87 K, with the mirrors set for fifty-two traversals, giving an effective path length of 200 m. The spectral slit width is 1 cm−1. Curve A is the spectrum of the evacuated cell and curve B is the oxygen spectrum at a pressure of 500 torr.

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