Abstract

Using a pulsed dye laser and a nonresonant optoacoustic detector, the absorption spectrum of NO2 has been measured in the spectral region of 480–625 nm at various cell pressures and at various concentrations in air. The results of the measurements as a function of NO2 concentration in air demonstrate the detection capability of the system. An extrapolated sensitivity of 4 ppb NO2/W of laser power has been achieved.

© 1977 Optical Society of America

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References

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  1. W. R. Harshbarger, M. B. Robin, Acc. Chem. Res. 6, 329 (1973).
    [CrossRef]
  2. A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
    [CrossRef]
  3. Preliminary results of this investigation were presented as Paper Tu B 14 at the 1976 Annual Meeting of the Optical Society of America (October 1976).
  4. T. C. Hall, F. E. Blacet, J. Chem. Phys. 20, 1745 (1952).
    [CrossRef]
  5. D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
    [CrossRef]
  6. L. B. Kreuzer, J. Appl. Phys. 42, 2934 (1971).
    [CrossRef]

1975 (1)

A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
[CrossRef]

1973 (1)

W. R. Harshbarger, M. B. Robin, Acc. Chem. Res. 6, 329 (1973).
[CrossRef]

1972 (1)

D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
[CrossRef]

1971 (1)

L. B. Kreuzer, J. Appl. Phys. 42, 2934 (1971).
[CrossRef]

1952 (1)

T. C. Hall, F. E. Blacet, J. Chem. Phys. 20, 1745 (1952).
[CrossRef]

Angus, A. M.

A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
[CrossRef]

Blacet, F. E.

T. C. Hall, F. E. Blacet, J. Chem. Phys. 20, 1745 (1952).
[CrossRef]

Chang, R. K.

D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
[CrossRef]

Colles, M. J.

A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
[CrossRef]

Fouche, D. G.

D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
[CrossRef]

Hall, T. C.

T. C. Hall, F. E. Blacet, J. Chem. Phys. 20, 1745 (1952).
[CrossRef]

Harshbarger, W. R.

W. R. Harshbarger, M. B. Robin, Acc. Chem. Res. 6, 329 (1973).
[CrossRef]

Herzenberg, A.

D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
[CrossRef]

Kreuzer, L. B.

L. B. Kreuzer, J. Appl. Phys. 42, 2934 (1971).
[CrossRef]

Marinero, E. E.

A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
[CrossRef]

Robin, M. B.

W. R. Harshbarger, M. B. Robin, Acc. Chem. Res. 6, 329 (1973).
[CrossRef]

Acc. Chem. Res. (1)

W. R. Harshbarger, M. B. Robin, Acc. Chem. Res. 6, 329 (1973).
[CrossRef]

J. Appl. Phys. (2)

D. G. Fouche, A. Herzenberg, R. K. Chang, J. Appl. Phys. 43, 3846 (1972).
[CrossRef]

L. B. Kreuzer, J. Appl. Phys. 42, 2934 (1971).
[CrossRef]

J. Chem. Phys. (1)

T. C. Hall, F. E. Blacet, J. Chem. Phys. 20, 1745 (1952).
[CrossRef]

Opt. Commun. (1)

A. M. Angus, E. E. Marinero, M. J. Colles, Opt. Commun. 14, 223 (1975).
[CrossRef]

Other (1)

Preliminary results of this investigation were presented as Paper Tu B 14 at the 1976 Annual Meeting of the Optical Society of America (October 1976).

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Figures (4)

Fig. 1
Fig. 1

Schematic of experimental arrangement.

Fig. 2
Fig. 2

Schematic of microphone: (1) aluminized mylar; (2) brass microphone cylinder; W1, W2 are glass windows.

Fig. 3
Fig. 3

Optoacoustically observed NO2 absorption spectrum.

Fig. 4
Fig. 4

NO2 absorption coefficients at 590 nm and 600 nm.

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