Demonstration of Zero Optical Backscattering from Single Nanoparticles
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- 作者：Steven Person ; Manish Jain ; Zachary Lapin ; Juan Jose S谩enz ; Gary Wicks ; Lukas Novotny
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：April 10, 2013
- 年：2013
- 卷：13
- 期：4
- 页码：1806-1809
- 全文大小：249K
- 年卷期：v.13,no.4(April 10, 2013)
- ISSN：1530-6992
文摘
We present the first experimental demonstration of zero backscattering from nanoparticles at optical frequencies as originally discussed by Kerker et al. [Kerker, M. ; Wang, D. ; Giles, C. J. Opt. Soc. A 1983, 73, 765]. GaAs pillars were fabricated on a fused silica substrate and the spectrum of the backscattered radiation was measured in the wavelength range 600鈥?000 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.