Wang Dawei, Guo Shiju, Ren Haixia, Yin Sheng
Opt Lett. 2002 Jun 15;27(12):992-4. doi: 10.1364/ol.27.000992.
According to the theory of scattering and absorption of light, an anisotropic Ag colloid particle, which is small compared with the wavelength of the incident light, absorbs light differently in different directions. The underlying mechanism is regarded as electron plasma resonance. The optical anisotropy of a single Ag particle or of a group of the same particles has been analyzed. An equation for estimating the distribution of the particle shapes in space is proposed. Based on this equation and the work of other researchers, a program was designed to calculate the major principal transmittance and the minor principal transmittance of Ag-doped polarizing glass. The results show that the polarizing property of glass with particles with different aspect ratios is better than that of glass with identical particles. Also, the effective wavelength range is different if the particles' aspect ratios change, and this range tends to narrow as the parameter R (the rate of change of the aspect ratio) is increased.
根据光的散射和吸收理论，与入射光波长相比尺寸较小的各向异性银胶体颗粒，在不同方向上对光的吸收方式不同。其潜在机制被认为是电子等离子体共振。已对单个银颗粒或一组相同颗粒的光学各向异性进行了分析。提出了一个用于估计颗粒形状在空间中分布的方程。基于此方程以及其他研究人员的工作，设计了一个程序来计算掺银偏振玻璃的主透射率和次主透射率。结果表明，具有不同纵横比颗粒的玻璃的偏振性能优于具有相同颗粒的玻璃。此外，如果颗粒的纵横比发生变化，有效波长范围也会不同，并且随着参数R（纵横比变化率）的增加，该范围趋于变窄。
