锗球的电磁偶极响应：干涉效应、散射各向异性和光学力
Electric and magnetic dipolar response of Germanium spheres: Interference effects, scattering anisotropy and optical forces
摘要：
我们解决散射截面，其后果，亚微米锗球。结果表明，有一个很宽的窗口，在近红外线的光散射这些粒子是充分描述了他们的感应电和磁偶极子。通过这种方式，我们观察到显着的各向异性散射角分布，以及零前向或后向散射强度，直到最近才在理论上证明了这一点仅适用于假设的磁介电球体。此外，有趣的新的影响，施加在这些对象上的光学力现在获得。
英文摘要：
We address the scattering cross sections, and their consequences, for submicrometer Germanium spheres. It is shown that there is a wide window in the near infrared where light scattering by these particles is fully described by their induced electric and magnetic dipoles. In this way, we observe remarkable anisotropic scattering angular distributions, as well as zero forward or backward scattered intensities, which until recently was theoretically demonstrated only for hypothetically postulated magnetodielectric spheres. Also, interesting new effects of the optical forces exerted on these objects are now obtained.
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