Abstract

It has been demonstrated that the 1000-lines-per-inch Bausch and Lomb plane replica grating can be employed for high-resolution infrared studies anywhere in the region between 1 and 40 μ. In this manner, calibration procedures become simplified in measuring wavelengths relative to the CO standards. A map of the pure rotational lines of the H2O molecule along with the vacuum wave numbers of these lines has been presented.

© 1962 Optical Society of America

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References

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  1. K. Narahari Rao, L. R. Ryan, and H. H. Nielsen, J. Opt. Soc. Am. 49, 216 (1959).
    [Crossref]
  2. K. Narahari Rao, T. J. Coburn, J. S. Garing, K. Rossmann, and H. H. Nielsen, J. Opt. Soc. Am. 49, 221 (1959).
    [Crossref]
  3. K. Narahari Rao, W. W. Brim, and J. M. Hoffman, J. Opt. Soc. Am. 50, 228 (1960).
    [Crossref]
  4. T. K. McCubbin, J. Opt. Soc. Am. 51, 887 (1961).
    [Crossref]
  5. K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
    [Crossref]
  6. K. Narahari Rao, J. Chem. Phys. 18, 213 (1950).
    [Crossref]
  7. D. H. Rank, D. P. Eastman, B. S. Rao, and T. A. Wiggins, J. Opt. Soc. Am. 51, 929 (1961).
    [Crossref]
  8. D. H. Rank, J. Opt. Soc. Am. 50, 657 (1960).
    [Crossref]

1961 (3)

K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
[Crossref]

D. H. Rank, D. P. Eastman, B. S. Rao, and T. A. Wiggins, J. Opt. Soc. Am. 51, 929 (1961).
[Crossref]

T. K. McCubbin, J. Opt. Soc. Am. 51, 887 (1961).
[Crossref]

1960 (2)

1959 (2)

1950 (1)

K. Narahari Rao, J. Chem. Phys. 18, 213 (1950).
[Crossref]

Brim, W. W.

K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
[Crossref]

K. Narahari Rao, W. W. Brim, and J. M. Hoffman, J. Opt. Soc. Am. 50, 228 (1960).
[Crossref]

Coburn, T. J.

Eastman, D. P.

Garing, J. S.

Hoffman, J. M.

K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
[Crossref]

K. Narahari Rao, W. W. Brim, and J. M. Hoffman, J. Opt. Soc. Am. 50, 228 (1960).
[Crossref]

Jones, L. H.

K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
[Crossref]

McCubbin, T. K.

McDowell, R. S.

K. Narahari Rao, W. W. Brim, J. M. Hoffman, L. H. Jones, and R. S. McDowell, J. Mol. Spectroscopy 7, 362 (1961).
[Crossref]

Narahari Rao, K.

Nielsen, H. H.

Rank, D. H.

Rao, B. S.

Rossmann, K.

Ryan, L. R.

Wiggins, T. A.

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Figures (4)

Fig. 1
Fig. 1

Separation of the spectral orders employing a LiF prism in the monochromator and a PbTe detector.

Fig. 2
Fig. 2

Spectra observed in the 1st, 10th, 17th and 20th orders of a 1000-lines-per-inch grating. The 1st-order spectrum was observed in the primary blaze, and the rest were obtained by using the grating echelle-fashion. Spectra in the 10–15-μ region recorded with this grating have been published elsewhere.5

Fig. 3
Fig. 3

Regions in which the 1–0 and 2–0 vibration-rotation bands of the CO molecule can be observed with a 1000-lines-per-inch grating.

Fig. 4
Fig. 4

Pure rotational lines of water vapor. (Prism-grating spectrometer.) Grating: 1000 lines per inch (Bausch and Lomb).Detector: thermocouple with CsBr window.

Tables (1)

Tables Icon

Table I Vacuum wave numbers of the pure-rotational lines of the H2O molecule.