Polarization anisotropy in near-field intensity patterns scattered multiply from dense random media

T. Iwai

doi:10.1117/12.2299037

1 September 1996 Polarization anisotropy in near-field intensity patterns scattered multiply from dense random media

T. Iwai

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 27784B (1996) https://doi.org/10.1117/12.2299037
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

Very impressive phenomena due to the multiple backscattering were experimentally observed in the lidar backscattering from atmospheric water droplet clouds¹⁾ and the backscatterings from the random surface with relatively large slope in the correlation area²⁾ and the spherical particles suspended in the water³⁾. In the near field, (1) the bow-tie intensity pattern is produced in the co-polarized component¹⁾, (2) the cloverleaf intensity pattern is produced in the cross-polarized component^2,3), (3) the intensity pattern enlarges radically and its contrast increases with a decrease of the particle size³⁾. These may be attributed to the memory effect of the polarization in multiple scatterings. In this report, the numerical investigations are conducted by using the Monte Carlo simulations on the basis of a phase function for the Rayleigh-Debye scattering theory since the resultant polarization effects depend substantially on the polarization properties of the individual scattering event from the single particle with a finite size.

Citation Download Citation

T. Iwai "Polarization anisotropy in near-field intensity patterns scattered multiply from dense random media", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 27784B (1 September 1996); https://doi.org/10.1117/12.2299037

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