| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5430614 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2006 | 9 Pages |
Abstract
We present the backscattering of particulate surfaces consisting of dry biological particles using two laboratory photopolarimeters that measure intensity and degree of linear polarization in a phase-angle range 0.2-60°. We measure scattering properties from three samples composed of dry biological particles, Bacillus subtilis var. niger (BG) spores and samples of fungi Aspergillus terreus and Sporisorium cruentum spores. We find that the surfaces display a prominent brightness opposition effect and significant negative polarization near backscattering angles. The brightness and polarimetric phase curves are different for B. subtilis and the fungi.
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Authors
Andrey Ovcharenko, Sergey Bondarenko, Yuriy Shkuratov, Cathy Scotto, Charles Merritt, Matthew Hart, Jay Eversole, Gorden Videen,