Abstract

Photoacoustic spectroscopic studies on a mixture of six CO2 isotopes (12C16O2, 12C18O2, 13C16O2, 13C18O2, 16O12C18O, and 16O13C18O) in the wavelength range of 9–11 µm by use of a home-built high-pressure continuously tunable CO2 laser with a bandwidth of 0.017 cm-1 are discussed. The concentrations of all CO2 isotopes present in the mixture could be determined with good accuracy. Furthermore, the previously unknown absorption cross sections of some important lines of the 12C18O2, 13C18O2, and 16O13C18O isotopes in the 9–11-µm range are reported.

© 1997 Optical Society of America

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  1. V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
    [CrossRef]
  2. P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on gases with high pressure continuously tunable CO2 laser,” J. Phys. IV (Paris) Colloq. C7, 523–526 (1994).
  3. P. Repond, M. W. Sigrist, “Continuously tunable high-pressure CO2 laser for spectroscopic studies on trace gases,” IEEE J. Quantum Electron. 32, 1549–1559 (1996).
    [CrossRef]
  4. P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on trace gases with a continuously tunable CO2 laser,” Appl. Opt. 35, 4065–4085 (1996).
    [CrossRef] [PubMed]
  5. W. J. Witteman, “The CO2 Laser,” Vol. 53 of the Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1987), pp. 23–52.
  6. L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
    [CrossRef]
  7. L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
    [CrossRef]
  8. L. G. Rosengren, “Optical optoacoustic detector design,” Appl. Opt. 14, 1960–1976 (1975).
    [CrossRef] [PubMed]
  9. A. Bohren, M. W. Sigrist, “Laser spectrometer based on optical parametric oscillator for trace gas detection in multicomponent mixtures,” presented at the Conference on Lasers and Electro-Optics Europe (CLEO Europe), Hamburg, Germany8–13 September 1996, paper CWH3.

1996 (2)

P. Repond, M. W. Sigrist, “Continuously tunable high-pressure CO2 laser for spectroscopic studies on trace gases,” IEEE J. Quantum Electron. 32, 1549–1559 (1996).
[CrossRef]

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on trace gases with a continuously tunable CO2 laser,” Appl. Opt. 35, 4065–4085 (1996).
[CrossRef] [PubMed]

1994 (1)

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on gases with high pressure continuously tunable CO2 laser,” J. Phys. IV (Paris) Colloq. C7, 523–526 (1994).

1992 (3)

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

1975 (1)

Benner, D. C.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Bohren, A.

A. Bohren, M. W. Sigrist, “Laser spectrometer based on optical parametric oscillator for trace gas detection in multicomponent mixtures,” presented at the Conference on Lasers and Electro-Optics Europe (CLEO Europe), Hamburg, Germany8–13 September 1996, paper CWH3.

Brown, L. R.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Camy-Peyret, C.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Flaud, J.-M.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Funtov, V. N.

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Gamache, R. R.

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Goldman, A.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Hawkins, R. L.

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

Malathy Devi, V.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Massie, S. T.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Nemets, A. M.

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Nemets, V. M.

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Perrin, A.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Petrov, A. A.

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Repond, P.

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on trace gases with a continuously tunable CO2 laser,” Appl. Opt. 35, 4065–4085 (1996).
[CrossRef] [PubMed]

P. Repond, M. W. Sigrist, “Continuously tunable high-pressure CO2 laser for spectroscopic studies on trace gases,” IEEE J. Quantum Electron. 32, 1549–1559 (1996).
[CrossRef]

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on gases with high pressure continuously tunable CO2 laser,” J. Phys. IV (Paris) Colloq. C7, 523–526 (1994).

Rinsland, C. P.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Rosengren, L. G.

Rothman, L. S.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

Sigrist, M. W.

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on trace gases with a continuously tunable CO2 laser,” Appl. Opt. 35, 4065–4085 (1996).
[CrossRef] [PubMed]

P. Repond, M. W. Sigrist, “Continuously tunable high-pressure CO2 laser for spectroscopic studies on trace gases,” IEEE J. Quantum Electron. 32, 1549–1559 (1996).
[CrossRef]

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on gases with high pressure continuously tunable CO2 laser,” J. Phys. IV (Paris) Colloq. C7, 523–526 (1994).

A. Bohren, M. W. Sigrist, “Laser spectrometer based on optical parametric oscillator for trace gas detection in multicomponent mixtures,” presented at the Conference on Lasers and Electro-Optics Europe (CLEO Europe), Hamburg, Germany8–13 September 1996, paper CWH3.

Smith, M. A. H.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Soloviov, A. A.

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Tipping, R. H.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Toth, R. A.

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

Wattson, R. B.

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

Witteman, W. J.

W. J. Witteman, “The CO2 Laser,” Vol. 53 of the Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1987), pp. 23–52.

Analyst (1)

V. N. Funtov, A. M. Nemets, V. M. Nemets, A. A. Petrov, A. A. Soloviov, “Isotopic spectral analysis of inorganic gases,” Analyst 117, 1049–1054 (1992).
[CrossRef]

Appl. Opt. (2)

IEEE J. Quantum Electron. (1)

P. Repond, M. W. Sigrist, “Continuously tunable high-pressure CO2 laser for spectroscopic studies on trace gases,” IEEE J. Quantum Electron. 32, 1549–1559 (1996).
[CrossRef]

J. Phys. IV (Paris) Colloq. (1)

P. Repond, M. W. Sigrist, “Photoacoustic spectroscopy on gases with high pressure continuously tunable CO2 laser,” J. Phys. IV (Paris) Colloq. C7, 523–526 (1994).

J. Quant. Spectrosc. Radiat. Transfer (2)

L. S. Rothman, R. R. Gamache, R. H. Tipping, C. P. Rinsland, M. A. H. Smith, D. C. Benner, V. Malathy Devi, J.-M. Flaud, C. Camy-Peyret, A. Perrin, A. Goldman, S. T. Massie, L. R. Brown, R. A. Toth, “The hitran molecular database: editions of 1991 and 1992,” J. Quant. Spectrosc. Radiat. Transfer 48, 469–507 (1992).
[CrossRef]

L. S. Rothman, R. L. Hawkins, R. B. Wattson, R. R. Gamache, “Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands,” J. Quant. Spectrosc. Radiat. Transfer 48, 537–566 (1992).
[CrossRef]

Other (2)

A. Bohren, M. W. Sigrist, “Laser spectrometer based on optical parametric oscillator for trace gas detection in multicomponent mixtures,” presented at the Conference on Lasers and Electro-Optics Europe (CLEO Europe), Hamburg, Germany8–13 September 1996, paper CWH3.

W. J. Witteman, “The CO2 Laser,” Vol. 53 of the Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1987), pp. 23–52.

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Figures (3)

Fig. 1
Fig. 1

Part of the PA spectrum of the isotopic mixture recorded in the 12C16O2 10P laser branch at 100-mbars total pressure and room temperature. The PA signals, given in volts per joule, are normalized to the laser-pulse energy. The 10R(16) line of the 838 isotope is not pure but is overlapped by absorption lines of other isotopes.

Fig. 2
Fig. 2

Comparison of the PA spectra at a fixed pressure of 100 mbars between the original isotopic mixture (open circles) and the isotopic mixture buffered with 17% of the 626 isotope (filled dots), illustrated for the (a) 10P(18), (b) the 10P(26) CO2 laser transition.

Fig. 3
Fig. 3

Procedure for obtaining the concentration of individual isotopes with a known absorption cross section is demonstrated for the 12C16O2 (626) isotope. Only absorption lines of the 626, 628, and 828 isotopes are present in the 9R laser branch. From these, only the absorption data of the 626 and 628 isotopes (marked by asterisks) are listed in the HITRAN database.6 Selected parts of the upper spectrum recorded in the 9R branch are used to create a new spectrum (bottom). From this the concentration is derived by a standard fitting method.

Tables (3)

Tables Icon

Table 1 Isotopic Composition for a Total Pressure of 100 mbars

Tables Icon

Table 2 Absorption Cross Sections of Three CO2 Isotopes in the 12C16O2 10P Laser Branch

Tables Icon

Table 3 Absorption Cross Sections of 12C18O2 in the 12C16O2 9R Laser Branch

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

n626+n628+n828+n636+n638+n838=1.
2n626+2n636+n628+n6382n828+2n838+n628+n638=0.228.
n626+n628+n828n636+n638+n838=0.159.
Siλ=niNtotalσiλC

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