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Proceedings Paper

Mechanisms of light scattering from biological cells and cell culture
Author(s): Tao T. Wu; Jianan Y. Qu
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Paper Abstract

The mechanisms of light scattering from biological cells are investigated by using confocal microscopy and light scattering spectroscopy (LSS). The LSS system measures the light scattering in the visible wavelength range from 1.1° to 165.0°. The results provide evidence that the small-sized subcellular structures are the major contributors to the backscattering signals. A unified Mie and fractal model is proposed to interpret light scattering by biological cells. The results demonstrate that Mie scattering from bare cells and nuclei is dominant in small forward scattering angles. But Mie scattering from bare cells and nuclei is found not to be able to provide a satisfactory interpretation of scattering spectral signals in the large angles, which is determined by fractal scattering from the subcellular structures. The findings of the theoretical model are consistent with the results of experimental investigation on the light scattering from biological cells.

Paper Details

Date Published: 8 January 2008
PDF: 8 pages
Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 68260P (8 January 2008); doi: 10.1117/12.778579
Show Author Affiliations
Tao T. Wu, Hong Kong Univ. of Science and Technology (Hong Kong China)
Jianan Y. Qu, Hong Kong Univ. of Science and Technology (Hong Kong China)


Published in SPIE Proceedings Vol. 6826:
Optics in Health Care and Biomedical Optics III
Xingde Li; Qingming Luo; Ying Gu, Editor(s)

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