Abstract

The spatial profiles and polarization properties of a Gaussian laser beam transmitted through dense water-droplet fogs have been studied in the laboratory. A narrow, linearly polarized beam at 514 nm experiences various degrees of broadening on propagating through a 1 m thick layer of fog. The extent of the observed broadening has been found to exhibit a strong dependence on both the attenuation coefficient of the fog and on receiver paramaters. Even at optical thicknesses in excess of 5 the beam retains a Gaussian core which does not broaden appreciably. Measurements of the polarization state of forward-scattered light reveal that in dense fogs the linear polarization is strongly preserved. The linear depolization ratio δ increases with distance off the laser beam axis, although it never exceeds 0.01 in our experiment. The applicability of a single-scatteing model is describing the results is discussed.

© 1978 Optical Society of America

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  1. W. R. McNeil and A. I. Carswell, "Lidar polarization studies of the troposphere," Appl. Opt. 14, 2158–2168 (1975).
  2. S. R. Pal and A. I. Carswell, "Polarization properties of lidar backscattering from clouds," Appl. Opt. 12, 1530–1535 (1973).
  3. H. C. Van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957).
  4. D. Deirmendjian, "Scattering and polarization properties of water clouds and hazes in the visible and infrared," Appl. Opt. 3, 187–196 (1964).
  5. E. W. Eloranta, "Calculation of doubly scattered lidar returns," Ph.D. Thesis, Univ. of Wisconsin (1972) (unpublished).
  6. J. R. Hodkinson, "Particle sizing by means of the forward scattering lobe," Appl. Opt. 5, 839–844 (1966).
  7. E. A. Bucher, "Computer simulation of light pulse propagation for communication through thick clouds," Appl. Opt. 12, 2391–2400 (1973).
  8. M. A. Box and A. Deepak, "Forward scattering corrections for aerosol extinction measurements," Paper presented at OSA Annual Meeting, Toronto (1977).
  9. T. S. Chu and D. C. Hogg, "Effects of precipitation on propagation at 0.63, 3.5, and 10.6 microns," Bell Syst. Tech. J. 47, 723–759 (1968).
  10. D. B. Rensch and R. K. Long, "Comparative studies of extinction and backscattering by aerosols, fog and rain at 10.6 µ and 0.63 µ," Appl. Opt. 9, 1563–1573 (1970).
  11. V. E. Zuev, M. V. Kabanov, and B. A. Savelev, "Propagation of laser beams in scattering media," Appl. Opt. 8, 137–141 (1969).
  12. E. A. Bucher and R. M. Lerner, "Experiments on light pulse communication and propagation through atmospheric clouds," Appl. Opt. 12, 2401–2414 (1973).
  13. L. B. Stotts, "The radiance produced by laser radiation transversing a particulate multiple-scattering medium," J. Opt. Soc. Am. 67, 815–819 (1977).
  14. D. Arnush, "Underwater light-beam propagation in the small-angle-scattering approximation," J. Opt. Soc Am. 62, 1109–1111 (1972).
  15. K. R. May, "Fog droplet sampling using a modified impactor technique," Quart. J. R. Met. Soc., 87, 535–548 (1961).
  16. K. N. Liou and R. M. Schotland, "Multiple backscattering and depolarization from water clouds for a pulsed lidar system," J. Atmos. Sci. 28, 772–784 (1971).
  17. M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1975).
  18. G. V. Rozenberg and G. I. Gorchakov, "The degree of ellipticity of the polarization of light scattered by atmospheric air as a tool in the investigation of aerosol microstructures," Atmos. and Oceanic Phys. 3, 400–407 (1967).

1977 (1)

1975 (1)

1973 (3)

1972 (1)

D. Arnush, "Underwater light-beam propagation in the small-angle-scattering approximation," J. Opt. Soc Am. 62, 1109–1111 (1972).

1971 (1)

K. N. Liou and R. M. Schotland, "Multiple backscattering and depolarization from water clouds for a pulsed lidar system," J. Atmos. Sci. 28, 772–784 (1971).

1970 (1)

1969 (1)

1968 (1)

T. S. Chu and D. C. Hogg, "Effects of precipitation on propagation at 0.63, 3.5, and 10.6 microns," Bell Syst. Tech. J. 47, 723–759 (1968).

1967 (1)

G. V. Rozenberg and G. I. Gorchakov, "The degree of ellipticity of the polarization of light scattered by atmospheric air as a tool in the investigation of aerosol microstructures," Atmos. and Oceanic Phys. 3, 400–407 (1967).

1966 (1)

1964 (1)

1961 (1)

K. R. May, "Fog droplet sampling using a modified impactor technique," Quart. J. R. Met. Soc., 87, 535–548 (1961).

Arnush, D.

D. Arnush, "Underwater light-beam propagation in the small-angle-scattering approximation," J. Opt. Soc Am. 62, 1109–1111 (1972).

Born, M.

M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1975).

Box, M. A.

M. A. Box and A. Deepak, "Forward scattering corrections for aerosol extinction measurements," Paper presented at OSA Annual Meeting, Toronto (1977).

Bucher, E. A.

Carswell, A. I.

Chu, T. S.

T. S. Chu and D. C. Hogg, "Effects of precipitation on propagation at 0.63, 3.5, and 10.6 microns," Bell Syst. Tech. J. 47, 723–759 (1968).

Deepak, A.

M. A. Box and A. Deepak, "Forward scattering corrections for aerosol extinction measurements," Paper presented at OSA Annual Meeting, Toronto (1977).

Deirmendjian, D.

Eloranta, E. W.

E. W. Eloranta, "Calculation of doubly scattered lidar returns," Ph.D. Thesis, Univ. of Wisconsin (1972) (unpublished).

Gorchakov, G. I.

G. V. Rozenberg and G. I. Gorchakov, "The degree of ellipticity of the polarization of light scattered by atmospheric air as a tool in the investigation of aerosol microstructures," Atmos. and Oceanic Phys. 3, 400–407 (1967).

Hodkinson, J. R.

Hogg, D. C.

T. S. Chu and D. C. Hogg, "Effects of precipitation on propagation at 0.63, 3.5, and 10.6 microns," Bell Syst. Tech. J. 47, 723–759 (1968).

Kabanov, M. V.

Lerner, R. M.

Liou, K. N.

K. N. Liou and R. M. Schotland, "Multiple backscattering and depolarization from water clouds for a pulsed lidar system," J. Atmos. Sci. 28, 772–784 (1971).

Long, R. K.

May, K. R.

K. R. May, "Fog droplet sampling using a modified impactor technique," Quart. J. R. Met. Soc., 87, 535–548 (1961).

McNeil, W. R.

Pal, S. R.

Rensch, D. B.

Rozenberg, G. V.

G. V. Rozenberg and G. I. Gorchakov, "The degree of ellipticity of the polarization of light scattered by atmospheric air as a tool in the investigation of aerosol microstructures," Atmos. and Oceanic Phys. 3, 400–407 (1967).

Savelev, B. A.

Schotland, R. M.

K. N. Liou and R. M. Schotland, "Multiple backscattering and depolarization from water clouds for a pulsed lidar system," J. Atmos. Sci. 28, 772–784 (1971).

Stotts, L. B.

Van de Hulst, H. C.

H. C. Van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957).

Wolf, E.

M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1975).

Zuev, V. E.

Appl. Opt. (8)

Atmos. and Oceanic Phys. (1)

G. V. Rozenberg and G. I. Gorchakov, "The degree of ellipticity of the polarization of light scattered by atmospheric air as a tool in the investigation of aerosol microstructures," Atmos. and Oceanic Phys. 3, 400–407 (1967).

Bell Syst. Tech. J. (1)

T. S. Chu and D. C. Hogg, "Effects of precipitation on propagation at 0.63, 3.5, and 10.6 microns," Bell Syst. Tech. J. 47, 723–759 (1968).

J. Atmos. Sci. (1)

K. N. Liou and R. M. Schotland, "Multiple backscattering and depolarization from water clouds for a pulsed lidar system," J. Atmos. Sci. 28, 772–784 (1971).

J. Opt. Soc Am. (1)

D. Arnush, "Underwater light-beam propagation in the small-angle-scattering approximation," J. Opt. Soc Am. 62, 1109–1111 (1972).

J. Opt. Soc. Am. (1)

Quart. J. R. Met. Soc. (1)

K. R. May, "Fog droplet sampling using a modified impactor technique," Quart. J. R. Met. Soc., 87, 535–548 (1961).

Other (4)

M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1975).

E. W. Eloranta, "Calculation of doubly scattered lidar returns," Ph.D. Thesis, Univ. of Wisconsin (1972) (unpublished).

H. C. Van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957).

M. A. Box and A. Deepak, "Forward scattering corrections for aerosol extinction measurements," Paper presented at OSA Annual Meeting, Toronto (1977).

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