Photonic jet generated by spheroidal particle with Gaussian-beam illumination

被引：50
作者：
Han, Lu [1 ]
Han, Yiping [1 ,2 ]
Gouesbet, Gerard [3 ]
Wang, Jiajie [1 ]
Grehan, Gerard [2 ,3 ]
机构：
[1] Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shannxi, Peoples R China
[2] Univ Rouen, CNRS 6614, Complexe Rech Interprofess Aerothermochim CORIA, LESP,UMR, F-76801 Saint Etienne Du Rouvray, France
[3] INSA, F-76801 Saint Etienne Du Rouvray, France
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 07期
关键词：
NEAR-FIELD; OPTICAL FORCES; NANOJET; LIGHT; SCATTERING; FLUORESCENCE; ENHANCEMENT; BACKSCATTERING; NANOPARTICLES; INDEX;
D O I：
10.1364/JOSAB.31.001476
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Within the framework of generalized Lorenz-Mie theory, the properties of three-dimensional photonic jets emerging from spheroidal particles illuminated by a focused Gaussian beam are studied. The intensity, focal distance, and transverse and longitudinal dimensions of a photonic jet depending on the ellipticity of the spheroidal particle are numerically investigated. The simulation results show that, by simply varying the ellipticity, it is possible to obtain localized photon fluxes having different power characteristics and spatial dimensions. This can be of interest for several applications, such as high-resolution (nanometer scale) optical sensors, subdiffraction-resolution optical virtual imaging, and ultradirectional optical antennas. (C) 2014 Optical Society of America
引用
收藏
页码：1476 / 1483
页数：8
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