Abstract

The motion of speckles produced by a rotating diffuse object with a spatial velocity distribution was investigated. It was shown that speckle motion in a two-lens imaging system depends on the Doppler-shift frequency distribution that is due to the spatial velocity distribution of the diffuse object within the point spread of the optical system used. By measuring the time correlation of speckle intensity fluctuations, the predicted properties of the speckle motion that exhibit a good agreement with the experimental results are presented.

© 1986 Optical Society of America

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  1. T. Asakura, N. Takai, “Dynamic laser speckles and their application to velocity measurements of the diffuse object,” Appl. Phys. 25, 179–194 (1981).
    [CrossRef]
  2. N. Takai, T. Iwai, T. Asakura, “Correlation distance of dynamic speckles,” Appl. Opt. 22, 170–177 (1983).
    [CrossRef] [PubMed]
  3. J. H. Churnside, “Speckle from a rotating diffuse object,” J. Opt. Soc. Am. 72, 1464–1469 (1982).
    [CrossRef]
  4. B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).
  5. T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
    [CrossRef]
  6. T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
    [CrossRef]
  7. J. Ohtsubo, “Velocity measurement using the time–space cross correlation of speckle patterns,” Opt. Commun. 34, 147–152 (1980).
    [CrossRef]

1984 (1)

T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
[CrossRef]

1983 (2)

T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
[CrossRef]

N. Takai, T. Iwai, T. Asakura, “Correlation distance of dynamic speckles,” Appl. Opt. 22, 170–177 (1983).
[CrossRef] [PubMed]

1982 (1)

1981 (1)

T. Asakura, N. Takai, “Dynamic laser speckles and their application to velocity measurements of the diffuse object,” Appl. Phys. 25, 179–194 (1981).
[CrossRef]

1980 (1)

J. Ohtsubo, “Velocity measurement using the time–space cross correlation of speckle patterns,” Opt. Commun. 34, 147–152 (1980).
[CrossRef]

1971 (1)

B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).

Asakura, T.

N. Takai, T. Iwai, T. Asakura, “Correlation distance of dynamic speckles,” Appl. Opt. 22, 170–177 (1983).
[CrossRef] [PubMed]

T. Asakura, N. Takai, “Dynamic laser speckles and their application to velocity measurements of the diffuse object,” Appl. Phys. 25, 179–194 (1981).
[CrossRef]

Churnside, J. H.

Crosignani, B.

B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).

Daino, B.

B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).

Doi, H.

T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
[CrossRef]

Iwai, T.

Ohtsubo, J.

J. Ohtsubo, “Velocity measurement using the time–space cross correlation of speckle patterns,” Opt. Commun. 34, 147–152 (1980).
[CrossRef]

Porto, P. D.

B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).

Saito, H.

T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
[CrossRef]

Takai, N.

N. Takai, T. Iwai, T. Asakura, “Correlation distance of dynamic speckles,” Appl. Opt. 22, 170–177 (1983).
[CrossRef] [PubMed]

T. Asakura, N. Takai, “Dynamic laser speckles and their application to velocity measurements of the diffuse object,” Appl. Phys. 25, 179–194 (1981).
[CrossRef]

Wakabayashi, N.

T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
[CrossRef]

T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
[CrossRef]

Yoshimura, T.

T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
[CrossRef]

T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. (2)

T. Asakura, N. Takai, “Dynamic laser speckles and their application to velocity measurements of the diffuse object,” Appl. Phys. 25, 179–194 (1981).
[CrossRef]

B. Crosignani, B. Daino, P. D. Porto, “Light scattering by a rotating disk,” Appl. Phys. 42, 399–403 (1971).

J. Opt. Soc. Am. (1)

Opt. Commun. (3)

T. Yoshimura, H. Doi, N. Wakabayashi, “Space–time correlation function of spatially and temporally integrated laser speckle intensity in a two-lens imaging optical system,” Opt. Commun. 48, 17–20 (1983).
[CrossRef]

T. Yoshimura, H. Saito, N. Wakabayashi, “Simultaneous 2-D velocity measurement using time-averaged contrast of dynamic speckle pattern,” Opt. Commun. 52, 265–268 (1984).
[CrossRef]

J. Ohtsubo, “Velocity measurement using the time–space cross correlation of speckle patterns,” Opt. Commun. 34, 147–152 (1980).
[CrossRef]

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