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Applied Optics

Applied Optics


  • Vol. 19, Iss. 2 — Jan. 15, 1980
  • pp: 256–262

Scattering of a focused beam by moving particles

S. Colak and C. Yeh  »View Author Affiliations

Applied Optics, Vol. 19, Issue 2, pp. 256-262 (1980)

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The scattering of a focused laser beam by moving particles is studied. A solution is given for a spherical scatterer that is small compared to the wavelength. Several numerical examples are given. It is concluded that for particles that have a short time of flight within the laser beam, the bandwidth and frequency spectrum of the scattered field is critically dependent on the laser beam shape. This fact is particularly important when information on the motion of small particles or macromolecules is to be inferred from the measured bandwidth and spectrum of the scattered field due to an incident wave that is not a plane wave.

© 1980 Optical Society of America

Original Manuscript: May 10, 1979
Published: January 15, 1980

S. Colak and C. Yeh, "Scattering of a focused beam by moving particles," Appl. Opt. 19, 256-262 (1980)

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  1. L. W. Casperson, C. Yeh, W. F. Yeung, Appl. Opt. 16, 1104 (1977). [CrossRef] [PubMed]
  2. S. Colak, C. Yeh, L. W. Casperson, Appl. Opt. 18, 294 (1979). [CrossRef] [PubMed]
  3. C. Yeh, S. Colak, P. W. Barber, “Scattering of Focused Beam by Arbitrarily Shaped Particles—Exact Solution,” to be submitted to Appl. Opt. [PubMed]
  4. K. S. Shifrin, Scattering of Light in a Turbid Medium (Nauka, Moscow, 1951); NASA Tech. Translation TTF-477, 1968, Chap. 4.
  5. B. J. Berne, R. Pecora, Dynamic Light Scattering (Academic, New York, 1976).
  6. C. T. O’Kanski, Molecular Electrooptics: Theory and Methods (Dekker, New York, 1976).

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