Abstract

The combination band of ν2 + 2ν3 of CH4 at 1.33 μm (7512 cm−1) was observed at 0.3-cm−1 resolution by a simple experimental arrangement using a near-infrared high-radiant InGaAsP light emitting diode (LED) and a Ge detector. Forty-six line centers were measured with accuracies of 0.03 cm−1. The assignment of these manifolds was made by inspection of the P, Q, and R branches. The experimental result indicates that the ν2 + 2ν3 band can be used for fully optical remote monitoring of methane using InGaAsP optical sources in conjunction with an ultralow-loss optical fiber network.

© 1983 Optical Society of America

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References

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  1. H. Inaba, in Conference Abstracts, Ninth International Laser Radar Conference (Munich, Germany, July 1979), invited paper 2-2, p. 61.
  2. H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
    [CrossRef]
  3. T. Kobayasi, M. Hirama, H. Inaba, Appl. Opt. 20, 3279 (1981).
    [CrossRef] [PubMed]
  4. T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
    [CrossRef]
  5. F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
    [CrossRef]
  6. G. Herzberg, Molecular Spectra and Molecular Structure II, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, New York, 1966).
  7. R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).
  8. W. V. Norris, H. J. Unger, Phys. Rev. 43, 467 (1933).
    [CrossRef]
  9. K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
    [CrossRef]
  10. K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.
  11. K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
    [CrossRef]

1983

K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
[CrossRef]

1982

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

1981

1980

K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
[CrossRef]

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

1979

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

1933

W. V. Norris, H. J. Unger, Phys. Rev. 43, 467 (1933).
[CrossRef]

Benedict, W. S.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Burch, D. E.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Calfee, R. F.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Chan, K.

K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
[CrossRef]

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

Chida, K.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Clough, S. A.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Edahiro, T.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Fox, K.

K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
[CrossRef]

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Fukuda, O.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Garing, J. S.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Halsay, G. W.

K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
[CrossRef]

Hamza, M.

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

Hanawa, F.

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

Herzberg, G.

G. Herzberg, Molecular Spectra and Molecular Structure II, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, New York, 1966).

Hirama, M.

T. Kobayasi, M. Hirama, H. Inaba, Appl. Opt. 20, 3279 (1981).
[CrossRef] [PubMed]

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

Inaba, H.

K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
[CrossRef]

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

T. Kobayasi, M. Hirama, H. Inaba, Appl. Opt. 20, 3279 (1981).
[CrossRef] [PubMed]

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

H. Inaba, in Conference Abstracts, Ninth International Laser Radar Conference (Munich, Germany, July 1979), invited paper 2-2, p. 61.

Inada, K.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Ito, H.

K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
[CrossRef]

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

Jennings, D. E.

K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
[CrossRef]

Kawachi, M.

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

Kobayasi, T.

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

T. Kobayasi, M. Hirama, H. Inaba, Appl. Opt. 20, 3279 (1981).
[CrossRef] [PubMed]

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

McClatchey, R. A.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Moriyama, T.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Nakahara, M.

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

Norris, W. V.

W. V. Norris, H. J. Unger, Phys. Rev. 43, 467 (1933).
[CrossRef]

Rothman, L. S.

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

Sanada, K.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

Sudo, S.

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

Unger, H. J.

W. V. Norris, H. J. Unger, Phys. Rev. 43, 467 (1933).
[CrossRef]

Appl. Opt.

Appl. Phys. Lett.

K. Chan, H. Ito, H. Inaba, Appl. Phys. Lett. 43, No. 7 (1983).
[CrossRef]

Electron. Lett.

T. Moriyama, O. Fukuda, K. Sanada, K. Inada, T. Edahiro, K. Chida, Electron. Lett. 16, 698 (1980).
[CrossRef]

F. Hanawa, S. Sudo, M. Kawachi, M. Nakahara, Electron. Lett. 16, 699 (1980).
[CrossRef]

H. Inaba, T. Kobayasi, M. Hirama, M. Hamza, Electron. Lett. 15, 749 (1979).
[CrossRef]

J. Mol. Spectrosc.

K. Fox, G. W. Halsay, D. E. Jennings, J. Mol. Spectrosc. 83, 213 (1980).
[CrossRef]

Phys. Rev.

W. V. Norris, H. J. Unger, Phys. Rev. 43, 467 (1933).
[CrossRef]

Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn.

K. Chan, H. Ito, T. Kobayasi, H. Inaba, Tech. Res. Rep. Inst. Electron. Commun. Engs. Jpn. 82, No. 101, Paper OQE 82-49, (July1982), in Japanese.

Other

H. Inaba, in Conference Abstracts, Ninth International Laser Radar Conference (Munich, Germany, July 1979), invited paper 2-2, p. 61.

G. Herzberg, Molecular Spectra and Molecular Structure II, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, New York, 1966).

R. A. McClatchey, W. S. Benedict, S. A. Clough, D. E. Burch, R. F. Calfee, K. Fox, L. S. Rothman, J. S. Garing, “AFCRL Atmospheric Absorption Line Parameters Compilation” Environmental Research Paper 434 AFCRL-TR-73-0096 (Air Force Cambridge Research Laboratories, Bedford, Mass.1973).

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Figures (1)

Fig. 1
Fig. 1

Measured absorption spectra and their assignment of the ν2 + 2ν3 combination band of CH4 molecules in the 1.31–1.35-μm region with a spectral resolution of 0.05 nm. Pure (99.9%) CH4 gas was contained in a 50-cm long sample cell at 300-Torr pressure at room temperature and an InGaAsP LED was used as the light source.

Tables (1)

Tables Icon

Table I Assignment and Measured Wavelengths of Absorption Spectra in the ν2 + 2ν3 Combination Band of CH4 Molecules at 1.31–1.35 μm a

Equations (12)

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

ν ( J , Δ J ) = 7511.9 + 10.5 γ 2.19 × 10 2 γ 2 + 1.82 × 10 2 γ 3 + 6.25 × 10 4 γ 4 5.98 × 10 4 γ 5 + 4.13 × 10 5 γ 6 ( cm 1 ) ,
[ 1.31394 1.31429 1.31459
[ 1.31606 1.31618 1.31644
[ 1.31794 1.31806 1.31829
[ 1.31988 1.31995 1.32005
[ 1.32175 1.32188
[ 1.32359 1.32371 1.32388
[ 1.33024 1.33036 1.33053 1.33074 1.33088 1.33103 1.33117 1.33124 1.33141 1.33147 1.33165
[ 1.33653 1.33688
[ 1.33800 1.33825 1.33841 1.33882
[ 1.34053 1.34076 1.34088
[ 1.34238 1.34276 1.34300 1.34329

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