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Optics Letters

Optics Letters


  • Vol. 24, Iss. 13 — Jul. 1, 1999
  • pp: 866–868

Polarized light-scattering measurements of dielectric spheres upon a silicon surface

Lipiin Sung, George W. Mulholland, and Thomas A. Germer  »View Author Affiliations

Optics Letters, Vol. 24, Issue 13, pp. 866-868 (1999)

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The polarization of light scattered into directions out of the plane of incidence by polystyrene latex spheres upon a silicon substrate was measured for p -polarized incident light. The experimental data show good agreement with theoretical predictions for three sizes of spheres. These results demonstrate that the polarization of light scattered by particles can be used to determine the size of particulate contaminants on silicon wafers. Theoretical models, based on successive degrees of approximation, indicate that the mean distance of a particle from the surface is the primary determinant of the scattered light polarization for small out-of-plane scattering angles.

© 1999 Optical Society of America

OCIS Codes
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(260.5430) Physical optics : Polarization
(290.5820) Scattering : Scattering measurements
(290.5850) Scattering : Scattering, particles

Lipiin Sung, George W. Mulholland, and Thomas A. Germer, "Polarized light-scattering measurements of dielectric spheres upon a silicon surface," Opt. Lett. 24, 866-868 (1999)

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