Abstract

Irregular and nonrepetitive transverse intensity distributions were measured in the near field during the gain-switch pulse (60-ns width) of a transversely excited atmospheric CO2 laser. Transverse patterns are regular and repetitive in the long-pulse (1-μs width) mode and in ensemble average in the short-pulse mode, and in both cases symmetry is imposed by the boundary conditions. Short-pulse transverse patterns formed by lasing domains appear with a mean size of 0.8 mm. The prediction of domain size based on a model of population inversion filamentation agrees with the experimental result.

© 1996 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. F. T. Arecchi, Nuovo Cimento D 16, 1065 (1994).
    [CrossRef]
  2. I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
    [CrossRef]
  3. F. Encinas-Sanz, J. M. Guerra, Meas. Sci. Technol. 1, 1188 (1990).
    [CrossRef]
  4. K. Staliunas, Phys. Rev. A 48, 1573 (1993).
    [CrossRef] [PubMed]
  5. V. I. Emelianov, V. I. Yukalov, Opt. Spectrosc. (USSR) 60, 634 (1986).
  6. V. M. Pérez-García, J. M. Guerra, Phys. Rev. A 50, 1646 (1994).
    [CrossRef] [PubMed]
  7. V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
    [CrossRef] [PubMed]
  8. F. T. Arecchi, E. Courtens, Phys. Rev. A 2, 1730 (1970).
    [CrossRef]
  9. W. J. Witteman, The CO2Laser ( Springer-Verlag, Berlin, 1987).

1995 (1)

V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
[CrossRef] [PubMed]

1994 (2)

V. M. Pérez-García, J. M. Guerra, Phys. Rev. A 50, 1646 (1994).
[CrossRef] [PubMed]

F. T. Arecchi, Nuovo Cimento D 16, 1065 (1994).
[CrossRef]

1993 (1)

K. Staliunas, Phys. Rev. A 48, 1573 (1993).
[CrossRef] [PubMed]

1991 (1)

I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
[CrossRef]

1990 (1)

F. Encinas-Sanz, J. M. Guerra, Meas. Sci. Technol. 1, 1188 (1990).
[CrossRef]

1986 (1)

V. I. Emelianov, V. I. Yukalov, Opt. Spectrosc. (USSR) 60, 634 (1986).

1970 (1)

F. T. Arecchi, E. Courtens, Phys. Rev. A 2, 1730 (1970).
[CrossRef]

Arecchi, F. T.

F. T. Arecchi, Nuovo Cimento D 16, 1065 (1994).
[CrossRef]

F. T. Arecchi, E. Courtens, Phys. Rev. A 2, 1730 (1970).
[CrossRef]

Courtens, E.

F. T. Arecchi, E. Courtens, Phys. Rev. A 2, 1730 (1970).
[CrossRef]

Emelianov, V. I.

V. I. Emelianov, V. I. Yukalov, Opt. Spectrosc. (USSR) 60, 634 (1986).

Encinas-Sanz, F.

I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
[CrossRef]

F. Encinas-Sanz, J. M. Guerra, Meas. Sci. Technol. 1, 1188 (1990).
[CrossRef]

Guerra, J. M.

V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
[CrossRef] [PubMed]

V. M. Pérez-García, J. M. Guerra, Phys. Rev. A 50, 1646 (1994).
[CrossRef] [PubMed]

I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
[CrossRef]

F. Encinas-Sanz, J. M. Guerra, Meas. Sci. Technol. 1, 1188 (1990).
[CrossRef]

Pastor, I.

V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
[CrossRef] [PubMed]

I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
[CrossRef]

Pérez-García, V. M.

V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
[CrossRef] [PubMed]

V. M. Pérez-García, J. M. Guerra, Phys. Rev. A 50, 1646 (1994).
[CrossRef] [PubMed]

Staliunas, K.

K. Staliunas, Phys. Rev. A 48, 1573 (1993).
[CrossRef] [PubMed]

Witteman, W. J.

W. J. Witteman, The CO2Laser ( Springer-Verlag, Berlin, 1987).

Yukalov, V. I.

V. I. Emelianov, V. I. Yukalov, Opt. Spectrosc. (USSR) 60, 634 (1986).

Appl. Phys. B (1)

I. Pastor, F. Encinas-Sanz, J. M. Guerra, Appl. Phys. B 52, 184 (1991).
[CrossRef]

Meas. Sci. Technol. (1)

F. Encinas-Sanz, J. M. Guerra, Meas. Sci. Technol. 1, 1188 (1990).
[CrossRef]

Nuovo Cimento D (1)

F. T. Arecchi, Nuovo Cimento D 16, 1065 (1994).
[CrossRef]

Opt. Spectrosc. (1)

V. I. Emelianov, V. I. Yukalov, Opt. Spectrosc. (USSR) 60, 634 (1986).

Phys. Rev. A (4)

V. M. Pérez-García, J. M. Guerra, Phys. Rev. A 50, 1646 (1994).
[CrossRef] [PubMed]

V. M. Pérez-García, I. Pastor, J. M. Guerra, Phys. Rev. A 52, 2392 (1995).
[CrossRef] [PubMed]

F. T. Arecchi, E. Courtens, Phys. Rev. A 2, 1730 (1970).
[CrossRef]

K. Staliunas, Phys. Rev. A 48, 1573 (1993).
[CrossRef] [PubMed]

Other (1)

W. J. Witteman, The CO2Laser ( Springer-Verlag, Berlin, 1987).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

(a) Long laser pulse, (b) short gain-switch laser pulse.

Fig. 2
Fig. 2

Intensity transverse distribution corresponding to a short laser pulse.

Fig. 3
Fig. 3

Patterns observed in the field cross section of a TEA CO2 laser and their Fourier transforms.

Equations (3)

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

b = 0 . 22 λ L .
τ pulse ( γ pol ) 1 .
l c = 2 ( c ρ γ λ 2 ) 1 / 2 .

Metrics