Abstract

A cw frequency-locked CO2 laser is used in conjunction with a 1-J TEA CO2 laser to observe the vibrational equilibration of optically pumped gases. Velocity-dependent effects in the vibrational-deactivation rate are also observed. Experimental results are given for CH3F.

© 1981 Optical Society of America

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References

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  1. J. O. Henningsen, H. G. Jensen, IEEE J. Quantum Electron. QE-11, 248–252 (1975).
    [CrossRef]
  2. T. A. DeTemple, E. J. Danielewicz, IEEE J. Quantum Electron. QE-12, 40–47 (1976).
    [CrossRef]
  3. R. J. Temkin, IEEE J. Quantum Electron. QE-13, 450–454 (1977).
    [CrossRef]
  4. F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
    [CrossRef]
  5. W. L. Smith, I. M. Mills, J. Mol. Spectrosc. 11, 11 (1963).
    [CrossRef]
  6. J. P. Sattler, G. P. Simonis, IEEE J. Quantum Electron. QE-13, 461–465 (1977).
    [CrossRef]
  7. E. Weitz, G. W. Flynn, J. Chem. Phys. 56, 6066–6067 (1972).
    [CrossRef]
  8. E. Weitz, G. W. Flynn, J. Chem. Phys. 58, 2781–2793 (1973).
    [CrossRef]
  9. F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).
  10. F. Scheory, G. W. Flynn, J. Chem. Phys. 72, 1175 (1980).
    [CrossRef]
  11. G. Hanock, I. W. M. Smith, Chem. Phys. Lett. 8, 41 (1971).
    [CrossRef]
  12. I. W. M. Smith, C. Wittig, Trans. Faraday Soc. II 69, 939 (1973).
    [CrossRef]
  13. N. Djeu, Appl. Phys. Lett. 23, p. 309 (1973).
    [CrossRef]
  14. T. L. Worchesky, Harry Diamond Laboratories, Adelphi, Md. 20783, personal communication.
  15. C. H. Townes, A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York, 1955), Chap. 3.

1980 (1)

F. Scheory, G. W. Flynn, J. Chem. Phys. 72, 1175 (1980).
[CrossRef]

1977 (2)

R. J. Temkin, IEEE J. Quantum Electron. QE-13, 450–454 (1977).
[CrossRef]

J. P. Sattler, G. P. Simonis, IEEE J. Quantum Electron. QE-13, 461–465 (1977).
[CrossRef]

1976 (1)

T. A. DeTemple, E. J. Danielewicz, IEEE J. Quantum Electron. QE-12, 40–47 (1976).
[CrossRef]

1975 (1)

J. O. Henningsen, H. G. Jensen, IEEE J. Quantum Electron. QE-11, 248–252 (1975).
[CrossRef]

1973 (3)

E. Weitz, G. W. Flynn, J. Chem. Phys. 58, 2781–2793 (1973).
[CrossRef]

I. W. M. Smith, C. Wittig, Trans. Faraday Soc. II 69, 939 (1973).
[CrossRef]

N. Djeu, Appl. Phys. Lett. 23, p. 309 (1973).
[CrossRef]

1972 (1)

E. Weitz, G. W. Flynn, J. Chem. Phys. 56, 6066–6067 (1972).
[CrossRef]

1971 (1)

G. Hanock, I. W. M. Smith, Chem. Phys. Lett. 8, 41 (1971).
[CrossRef]

1963 (1)

W. L. Smith, I. M. Mills, J. Mol. Spectrosc. 11, 11 (1963).
[CrossRef]

1956 (1)

F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
[CrossRef]

1953 (1)

F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).

Anderson, F.

F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
[CrossRef]

Bak, B.

F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
[CrossRef]

Brodersen, S.

F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
[CrossRef]

Danielewicz, E. J.

T. A. DeTemple, E. J. Danielewicz, IEEE J. Quantum Electron. QE-12, 40–47 (1976).
[CrossRef]

DeTemple, T. A.

T. A. DeTemple, E. J. Danielewicz, IEEE J. Quantum Electron. QE-12, 40–47 (1976).
[CrossRef]

Djeu, N.

N. Djeu, Appl. Phys. Lett. 23, p. 309 (1973).
[CrossRef]

Flynn, G. W.

F. Scheory, G. W. Flynn, J. Chem. Phys. 72, 1175 (1980).
[CrossRef]

E. Weitz, G. W. Flynn, J. Chem. Phys. 58, 2781–2793 (1973).
[CrossRef]

E. Weitz, G. W. Flynn, J. Chem. Phys. 56, 6066–6067 (1972).
[CrossRef]

Fogg, F. G. T.

F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).

Hanks, P. A.

F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).

Hanock, G.

G. Hanock, I. W. M. Smith, Chem. Phys. Lett. 8, 41 (1971).
[CrossRef]

Henningsen, J. O.

J. O. Henningsen, H. G. Jensen, IEEE J. Quantum Electron. QE-11, 248–252 (1975).
[CrossRef]

Jensen, H. G.

J. O. Henningsen, H. G. Jensen, IEEE J. Quantum Electron. QE-11, 248–252 (1975).
[CrossRef]

Lambert, J. D.

F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).

Mills, I. M.

W. L. Smith, I. M. Mills, J. Mol. Spectrosc. 11, 11 (1963).
[CrossRef]

Sattler, J. P.

J. P. Sattler, G. P. Simonis, IEEE J. Quantum Electron. QE-13, 461–465 (1977).
[CrossRef]

Schawlow, A. L.

C. H. Townes, A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York, 1955), Chap. 3.

Scheory, F.

F. Scheory, G. W. Flynn, J. Chem. Phys. 72, 1175 (1980).
[CrossRef]

Simonis, G. P.

J. P. Sattler, G. P. Simonis, IEEE J. Quantum Electron. QE-13, 461–465 (1977).
[CrossRef]

Smith, I. W. M.

I. W. M. Smith, C. Wittig, Trans. Faraday Soc. II 69, 939 (1973).
[CrossRef]

G. Hanock, I. W. M. Smith, Chem. Phys. Lett. 8, 41 (1971).
[CrossRef]

Smith, W. L.

W. L. Smith, I. M. Mills, J. Mol. Spectrosc. 11, 11 (1963).
[CrossRef]

Temkin, R. J.

R. J. Temkin, IEEE J. Quantum Electron. QE-13, 450–454 (1977).
[CrossRef]

Townes, C. H.

C. H. Townes, A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York, 1955), Chap. 3.

Weitz, E.

E. Weitz, G. W. Flynn, J. Chem. Phys. 58, 2781–2793 (1973).
[CrossRef]

E. Weitz, G. W. Flynn, J. Chem. Phys. 56, 6066–6067 (1972).
[CrossRef]

Wittig, C.

I. W. M. Smith, C. Wittig, Trans. Faraday Soc. II 69, 939 (1973).
[CrossRef]

Worchesky, T. L.

T. L. Worchesky, Harry Diamond Laboratories, Adelphi, Md. 20783, personal communication.

Appl. Phys. Lett. (1)

N. Djeu, Appl. Phys. Lett. 23, p. 309 (1973).
[CrossRef]

Chem. Phys. Lett. (1)

G. Hanock, I. W. M. Smith, Chem. Phys. Lett. 8, 41 (1971).
[CrossRef]

IEEE J. Quantum Electron. (4)

J. O. Henningsen, H. G. Jensen, IEEE J. Quantum Electron. QE-11, 248–252 (1975).
[CrossRef]

T. A. DeTemple, E. J. Danielewicz, IEEE J. Quantum Electron. QE-12, 40–47 (1976).
[CrossRef]

R. J. Temkin, IEEE J. Quantum Electron. QE-13, 450–454 (1977).
[CrossRef]

J. P. Sattler, G. P. Simonis, IEEE J. Quantum Electron. QE-13, 461–465 (1977).
[CrossRef]

J. Chem. Phys. (4)

E. Weitz, G. W. Flynn, J. Chem. Phys. 56, 6066–6067 (1972).
[CrossRef]

E. Weitz, G. W. Flynn, J. Chem. Phys. 58, 2781–2793 (1973).
[CrossRef]

F. Anderson, B. Bak, S. Brodersen, J. Chem. Phys. 24, 989–992 (1956).
[CrossRef]

F. Scheory, G. W. Flynn, J. Chem. Phys. 72, 1175 (1980).
[CrossRef]

J. Mol. Spectrosc. (1)

W. L. Smith, I. M. Mills, J. Mol. Spectrosc. 11, 11 (1963).
[CrossRef]

Proc. R. Soc. London (1)

F. G. T. Fogg, P. A. Hanks, J. D. Lambert, Proc. R. Soc. London A219, 490 (1953).

Trans. Faraday Soc. II (1)

I. W. M. Smith, C. Wittig, Trans. Faraday Soc. II 69, 939 (1973).
[CrossRef]

Other (2)

T. L. Worchesky, Harry Diamond Laboratories, Adelphi, Md. 20783, personal communication.

C. H. Townes, A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York, 1955), Chap. 3.

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Figures (3)

Fig. 1
Fig. 1

Block diagram of experimental apparatus.

Fig. 2
Fig. 2

(a) Relaxation of ν3 mode subsequent to 9P(20) excitation. 2.5-Torr CH3F, 5 × 10−4 sec/div. (b) Same as (a). 4-Torr CH3F, 10−4 sec/div.

Fig. 3
Fig. 3

(a) Relaxation of the ν3 mode using the Q18,13, 9P(20) probe laser transition. 3.8-Torr CH3F, 2 × 10−4 sec/div. (b) Same as (a). 6.4-Torr CH3F, 2 × 10−4 sec/div.

Equations (2)

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N l = f J K N 0 ( 1 f T W r T 2 ) ,
N l ( 5 ) = f J K N 0 [ 1 f T W r T 2 exp ( Γ t ) ] ,

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