Comparison of photonic nanojets key parameters produced by nonspherical microparticles

被引：23

作者：

Geints, Yuri E. ^{[2
,3
]}

Minin, Igor V. ^{[1
,3
]}

Panina, Ekaterina K. ^{[2
]}

Zemlyanov, Alexander A. ^{[2
]}

Minin, Oleg V. ^{[3
]}

机构：

[1] Tomsk Polytech Univ, Tomsk, Russia

[2] Zuev Inst Atmospher Opt SB RAS, 1 Zuev Sq, Tomsk 634021, Russia

[3] Tomsk State Univ, Tomsk, Russia

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2017年 / 49卷 / 03期

关键词：

Photonic nanojet; Light scattering; Microparticles; Nanophotonics; DISCRETE-DIPOLE APPROXIMATION; DIELECTRIC CUBOIDS; LIGHT; JETS; PROPAGATION; SCATTERING;

D O I：

10.1007/s11082-017-0958-y

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Photonic nanojet (PNJ) phenomenon arising near transparent dielectric microparticles subject to plane wave illumination in the visible is considered. The near-field light scattering patterns produced by shaped wavelength-sized particles (hexahedron, cuboid, sphere, hemisphere, axicon, assembled particles) are numerically simulated and key PNJ parameters are analyzed. Particle shape influence on the peak intensity and spatial resolution of produced PNJ is investigated. We demonstrate that due to the reciprocal action of spherical-type and conical-type focusing of the special type of composite particles constituted of a hemisphere and an axicon can produce highly localized PNJ with peak intensity considerable higher than that for isolated regular particle (sphere, microaxicon, hemisphere).

引用

页数：7

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