标题： 单个纳米颗粒的零光学后向散射演示 显示英文标题

标题： Demonstration of zero optical backscattering from single nanoparticles

摘要： 我们首次实验展示了在光学频率下纳米颗粒的零后向散射，这最初由Kerker等人讨论过。[M. Kerker, D. Wang 和 C. Giles, J. Opt. Soc. A 73, 765 (1983)]。在熔融石英基底上制备了GaAs柱，并在波长范围600-1000 nm内测量了后向散射辐射的光谱。在约725 nm处出现了后向散射的抑制，这与基于离散偶极子近似的计算结果一致。具有零后向散射的粒子为超材料和光学天线提供了新的功能。 显示英文摘要

摘要： We present the first experimental demonstration of zero backscattering from nanoparticles at op- tical frequencies as originally discussed by Kerker et. al. [M. Kerker, D. Wang, and C. Giles, J. Opt. Soc. A 73, 765 (1983)]. GaAs pillars were fabricated on a fused silica substrate and the spectrum of the backscattered radiation was measured in the wavelength range 600-1000 nm. Suppression of backscattering occurred at ~725 nm, agreeing with calculations based on the discrete dipole approximation. Particles with zero backscattering provide new functionality for metamaterials and optical antennas.