Holographic formation of optical-vortex filaments

被引：153

作者：

Sacks, ZS ^{[1
]}

Rozas, D ^{[1
]}

Swartzlander, GA ^{[1
]}

机构：

[1] Worcester Polytech Inst, Dept Phys, Worcester, MA 01609 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1998年 / 15卷 / 08期

关键词：

D O I：

10.1364/JOSAB.15.002226

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical-vortex filament is characterized by a dark core of vanishing size and fluidlike propagation dynamics in the near-field region. This type of phase singularity does not naturally occur as an eigenmode of a cylindrically symmetric system, but it can be easily formed by computer-generated holography. The size of the core is an important attribute affecting vortex-vortex interactions within a laser beam. Here we demonstrate a means to minimize the core size, and we experimentally show that a beam-to-core size ratio exceeding 175 may be readily achieved. (C) 1998 Optical Society of America [S0740-3224(98)01708-1] OCIS code: 090.1760.

引用

页码：2226 / 2234

页数：9