Abstract

Techniques are described for drift compensation and scan calibration of a visible-to-infrared difference-frequency converter enabling high-resolution molecular spectra to be recorded with a precision and reproducibility of 5 × 10−4 cm−1. The capabilities of the spectrometer are illustrated by scans of the tetrahedral fine structure in the ν3 band of methane under low pressure, Doppler-limited and atmospheric pressure, collision-broadened conditions.

© 1976 Optical Society of America

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References

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  1. A. S. Pine, J. Opt. Soc. Am. 64, 1683 (1974).
    [CrossRef]
  2. A. S. Pine, J. Mol. Spectrosc. 54, 132 (1975).
    [CrossRef]
  3. G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
    [CrossRef]
  4. W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
    [CrossRef]
  5. L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
    [CrossRef]
  6. G. Guelachvili has suggested that frequency-offset-locking a second single-line single-mode argon laser to such a multiline single-mode stabilized laser would allow for reoptimiization.
  7. K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
    [CrossRef]
  8. R. L. Barger and J. L. Hall, Appl. Phys. Lett. 22, 199 (1973).
  9. J. O. Ledbetter, Air Pollution–Part A (Marcel Dekker, New York, 1972), p. 2.
  10. S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
    [CrossRef]
  11. G. Herzberg, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, Princeton, N. J., 1959), Chap. 4.
  12. N. Husson and M. Dang-Nhu, J. Phys. (Paris) 32, 627 (1971).
    [CrossRef]
  13. J. Susskind, J. Chem. Phys, 56, 5152 (1972).
    [CrossRef]
  14. B. Bobin and K. Fox, J. Chem. Phys. 58, 1771 (1973); J. Phys. (Paris) 34, 571 (1973).
    [CrossRef]

1975 (2)

A. S. Pine, J. Mol. Spectrosc. 54, 132 (1975).
[CrossRef]

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

1974 (1)

1973 (3)

B. Bobin and K. Fox, J. Chem. Phys. 58, 1771 (1973); J. Phys. (Paris) 34, 571 (1973).
[CrossRef]

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

R. L. Barger and J. L. Hall, Appl. Phys. Lett. 22, 199 (1973).

1972 (3)

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

J. Susskind, J. Chem. Phys, 56, 5152 (1972).
[CrossRef]

1971 (1)

N. Husson and M. Dang-Nhu, J. Phys. (Paris) 32, 627 (1971).
[CrossRef]

1970 (1)

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

Amiot, C.

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

Andia, R.

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

Barger, R. L.

R. L. Barger and J. L. Hall, Appl. Phys. Lett. 22, 199 (1973).

Barnes, W. L.

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

Bobin, B.

B. Bobin and K. Fox, J. Chem. Phys. 58, 1771 (1973); J. Phys. (Paris) 34, 571 (1973).
[CrossRef]

Dang-Nhu, M.

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

N. Husson and M. Dang-Nhu, J. Phys. (Paris) 32, 627 (1971).
[CrossRef]

Danielson, B. L.

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

Darley, P. E.

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

Day, G. W.

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

Evenson, K. M.

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

Fox, K.

B. Bobin and K. Fox, J. Chem. Phys. 58, 1771 (1973); J. Phys. (Paris) 34, 571 (1973).
[CrossRef]

Guelachvili, G.

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

Hall, J. L.

R. L. Barger and J. L. Hall, Appl. Phys. Lett. 22, 199 (1973).

Henry, L.

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

Herzberg, G.

G. Herzberg, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, Princeton, N. J., 1959), Chap. 4.

Hunt, R. H.

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

Husson, N.

N. Husson and M. Dang-Nhu, J. Phys. (Paris) 32, 627 (1971).
[CrossRef]

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

Kopczynski, S. L.

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

Ledbetter, J. O.

J. O. Ledbetter, Air Pollution–Part A (Marcel Dekker, New York, 1972), p. 2.

Lonneman, W. A.

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

Petersen, F. R.

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

Pine, A. S.

A. S. Pine, J. Mol. Spectrosc. 54, 132 (1975).
[CrossRef]

A. S. Pine, J. Opt. Soc. Am. 64, 1683 (1974).
[CrossRef]

Plyler, E. K.

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

Poussigue, G.

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

Sufferfield, F. D.

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

Susskind, J.

J. Susskind, J. Chem. Phys, 56, 5152 (1972).
[CrossRef]

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

Tarrago, G.

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

Valentin, A.

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

Wells, J. S.

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

Appl. Phys. Lett. (2)

K. M. Evenson, J. S. Wells, F. R. Petersen, B. L. Danielson, and G. W. Day, Appl. Phys. Lett. 22, 192 (1973).
[CrossRef]

R. L. Barger and J. L. Hall, Appl. Phys. Lett. 22, 199 (1973).

Environ, Sci. Technol. (1)

S. L. Kopczynski, W. A. Lonneman, F. D. Sufferfield, and P. E. Darley, Environ, Sci. Technol. 6, 342 (1972).
[CrossRef]

J. Chem. Phys, (1)

J. Susskind, J. Chem. Phys, 56, 5152 (1972).
[CrossRef]

J. Chem. Phys. (2)

B. Bobin and K. Fox, J. Chem. Phys. 58, 1771 (1973); J. Phys. (Paris) 34, 571 (1973).
[CrossRef]

W. L. Barnes, J. Susskind, R. H. Hunt, and E. K. Plyler, J. Chem. Phys. 56, 5160 (1972).
[CrossRef]

J. Mol. Spectrosc, (1)

L. Henry, N. Husson, R. Andia, and A. Valentin, J. Mol. Spectrosc, 36, 511 (1970).
[CrossRef]

J. Mol. Spectrosc. (2)

A. S. Pine, J. Mol. Spectrosc. 54, 132 (1975).
[CrossRef]

G. Tarrago, M. Dang-Nhu, G. Poussigue, G. Guelachvili, and C. Amiot, J. Mol. Spectrosc. 57, 246 (1975).
[CrossRef]

J. Opt. Soc. Am. (1)

J. Phys. (Paris) (1)

N. Husson and M. Dang-Nhu, J. Phys. (Paris) 32, 627 (1971).
[CrossRef]

Other (3)

G. Guelachvili has suggested that frequency-offset-locking a second single-line single-mode argon laser to such a multiline single-mode stabilized laser would allow for reoptimiization.

G. Herzberg, Infrared and Raman Spectra of Polyatomic Molecules (Van Nostrand, Princeton, N. J., 1959), Chap. 4.

J. O. Ledbetter, Air Pollution–Part A (Marcel Dekker, New York, 1972), p. 2.

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Figures (8)

FIG. 1
FIG. 1

Schematic of visible-to-infrared difference-frequency spectrometer system.

FIG. 2
FIG. 2

Interferometer scope display and timing control logic.

FIG. 3
FIG. 3

Doppler-limited spectra of the P(7) multiplet of the ν3 band of methane with superimposed SCI markers. Methane pressure is 0.5 Torr; cell length is 10 cm.

FIG. 4
FIG. 4

Doppler-broadened and air-broadened spectra of the R(0) line of the ν3 band of methane with superimposed SCI markers. Low-pressure trace with 0.5 Torr CH4; cell length 10 cm. High-pressure trace with 1.0 Torr CH4 + 760 Torr air; cell length 50 cm.

FIG. 5
FIG. 5

P-branch spectra of the ν3 band of methane. Low-pressure trace with 0.5 Torr CH4; cell length, 10 cm. High-pressure trace with 1.0 Torr CH4 + 760 Torr air; cell length 50 cm.

FIG. 6
FIG. 6

Q-branch spectra of the ν3 band of methane. Low-pressure trace with 0.5 Torr CH4; cell length 10 cm. High-pressure trace with 1.0 Torr CH4 + 760 Torr air; cell length 50 cm.

FIG. 7
FIG. 7

R-branch spectra of the ν3 band of methane. Low-pressure trace with 0.5 Torr CH4; cell length 10 cm. High-pressure trace with 1.0 Torr CH4 + 760 Torr air; cell length 50 cm.

FIG. 8
FIG. 8

Air-broadened spectrum of the R(0) line fit to Lorentzian line shape. The theoretical points are shown at multiples of the half-width at half-maximum.

Tables (3)

Tables Icon

TABLE I Observed P-branch line intensities and frequencies from low-pressure methane ν3-band spectra.a

Tables Icon

TABLE II Observed Q-branch line intensities and frequencies from low-pressure methane ν3-band spectra.a

Tables Icon

TABLE III Observed R-branch line intensities and frequencies from low-pressure methane ν3-band spectra.a