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arXiv · 1104.3363

Electric and magnetic dipolar response of Germanium spheres: Interference effects, scattering anisotropy and optical forces

Raquel Gómez-Medina·Braulio García-Cámara·Irene Suárez-Lacalle·Francisco González·Fernando Moreno·Manuel Nieto-Vesperinas·Juan J. Sáenz
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Abstract

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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Raquel Gómez-Medina, Braulio García-Cámara, Irene Suárez-Lacalle, Francisco González, Fernando Moreno, Manuel Nieto-Vesperinas, Juan J. Sáenz. 2011-04-18. Electric and magnetic dipolar response of Germanium spheres: Interference effects, scattering anisotropy and optical forces. https://doi.org/10.1117/1.3603941

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