Abstract

The frequency of the 170.6-μm cw CH3OH optically pumped laser emission has been remeasured at different pressures without observing the pressure shift observed by Lawandy and Koepf [Opt. Lett. 5, 383 (1980)]. The far-infrared frequency was synthesized with two stabilized CO2 lasers. No measurable pressure shift over the operating pressure range of the laser was observed, and the frequency was confirmed to be 1 757 526.3 MHz. However, competing lasing lines were found to produce spurious effects on the frequency. These effects may explain the apparent shifts.

© 1984 Optical Society of America

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References

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  1. P. M. Plainchamp, IEEE J. Quantum Electron. QE-15, 860 (1979).
    [CrossRef]
  2. A discussion of the independent measurements can be found in F. Strumia, M. Inguscio, Infrared and Millimeter Waves, K. J. Button, ed. (Academic, New York, 1982), Vol. 5, pp. 129–213.
  3. N. M. Lawandy, G. A. Koepf, Opt. Lett. 5, 383 (1980).
    [CrossRef] [PubMed]
  4. F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
    [CrossRef]
  5. F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
    [CrossRef]
  6. K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).
  7. H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
    [CrossRef]
  8. P. W. Anderson, Phys. Rev. 76, 647 (1949).
    [CrossRef]

1980 (2)

N. M. Lawandy, G. A. Koepf, Opt. Lett. 5, 383 (1980).
[CrossRef] [PubMed]

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

1979 (1)

P. M. Plainchamp, IEEE J. Quantum Electron. QE-15, 860 (1979).
[CrossRef]

1975 (1)

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

1974 (1)

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

1949 (1)

P. W. Anderson, Phys. Rev. 76, 647 (1949).
[CrossRef]

Anderson, P. W.

P. W. Anderson, Phys. Rev. 76, 647 (1949).
[CrossRef]

Clifton, B. J.

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

Evenson, K. M.

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).

Fetterman, H. R.

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

Goto, K.

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

Inguscio, M.

K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).

A discussion of the independent measurements can be found in F. Strumia, M. Inguscio, Infrared and Millimeter Waves, K. J. Button, ed. (Academic, New York, 1982), Vol. 5, pp. 129–213.

Jennings, D. A.

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).

Jimenez, J. J.

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

Koepf, G. A.

Lawandy, N. M.

Parker, C. D.

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

Petersen, F. R.

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).

Plainchamp, P. M.

P. M. Plainchamp, IEEE J. Quantum Electron. QE-15, 860 (1979).
[CrossRef]

Scalabrin, A.

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

Strumia, F.

A discussion of the independent measurements can be found in F. Strumia, M. Inguscio, Infrared and Millimeter Waves, K. J. Button, ed. (Academic, New York, 1982), Vol. 5, pp. 129–213.

Tannenwald, P. E.

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

Wells, J. S.

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

Appl. Phys. Lett. (1)

H. R. Fetterman, B. J. Clifton, P. E. Tannenwald, C. D. Parker, Appl. Phys. Lett. 24, 70 (1974).
[CrossRef]

IEEE J. Quantum Electron. (3)

P. M. Plainchamp, IEEE J. Quantum Electron. QE-15, 860 (1979).
[CrossRef]

F. R. Petersen, K. M. Evenson, D. A. Jennings, A. Scalabrin, IEEE J. Quantum Electron. QE-16, 319 (1980).
[CrossRef]

F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, J. J. Jimenez, IEEE J. Quantum Electron. QE-11, 838 (1975).
[CrossRef]

Opt. Lett. (1)

Phys. Rev. (1)

P. W. Anderson, Phys. Rev. 76, 647 (1949).
[CrossRef]

Other (2)

K. M. Evenson, M. Inguscio, D. A. Jennings, F. R. Petersen, “The point-contact diode at laser frequencies,” J. Appl. Phys. (to be published).

A discussion of the independent measurements can be found in F. Strumia, M. Inguscio, Infrared and Millimeter Waves, K. J. Button, ed. (Academic, New York, 1982), Vol. 5, pp. 129–213.

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Figures (1)

Fig. 1
Fig. 1

Frequency of the 170.6-μm line as a function of CH3OH pressure. Experimental points are taken from Table 1. The solid line refers to the pressure shift claimed in Ref. 3. The points represent the previously measured value.

Tables (1)

Tables Icon

Table 1 Frequency Measurements of the 170.6-μm Laser Line at Different CH3OH Pressures

Metrics