Abstract
The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.
Original language | English (US) |
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Pages (from-to) | 6127-6132 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 13 |
Issue number | 16 |
DOIs | |
State | Published - Aug 8 2005 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics