Comparisons In Back-scatter And Radial-scatter Of Incident Linearly And Circularly Polarized Light


A newly developed, computer controlled experimental facility to measure two-dimensional multiple scattering of light at three different positions outside of a large cylindrical scattering volume is discussed. The light is produced by a laser beam and is incident normal to the center of the flat, top surface of the cylinder. Data acquired at all three positions, back-scatter from the top, radial-scatter at the side and transmitted through the bottom of the scattering volume, are presented. Of the three, the back-scatter and radial-scatter are discussed in more detail. In particular, comparisons are made in the measured scattered powers in the case of the incident light being linearly and circularly polarized. Preliminary experiments indicate that for both back-scatter and radial-scatter more power is detected for circularly polarized incident light than for vertically polarized. That is, in the case of light back-scattered from the top of the volume at any radial position measured from the incident laser beam more power is detected when the light is circularly polarized. Similarly there is more power scattered radially for circularly polarized incident light at any position measured down from the top surface.


Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

1996-756X; 0277-786X

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





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Publication Date

25 Jan 1990