Polychromatic Optical Vortex Generation from Patterned Cholesteric Liquid Crystals

被引：83

作者：

Kobashi, Junji ^{[1
]}

Yoshida, Hiroyuki ^{[1
,2
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Elect Elect & Informat Engn, 2-1 Yamada Oka, Suita, Osaka 5650871, Japan

[2] Japan Sci & Technol Agcy, Precursory Res Embryon Sci & Technol JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 25期

关键词：

ORBITAL ANGULAR-MOMENTUM; VORTICES; HOLOGRAMS; PHASES;

D O I：

10.1103/PhysRevLett.116.253903

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Generation of optical vortices is described in cholesteric liquid crystals with a singular point in the spatial distribution of a helix phase. The phenomenon uses the fact that a Bragg reflected light phase varies in proportion to the spatial phase of the helix, both at normal and oblique incidences. Our proposal enables high-efficiency, polychromatic generation of optical vortices without the need of a cumbersome fabrication process and fine-tuning.

引用

页数：5

共 30 条

[1]

Arlt J, 1998, J MOD OPTIC, V45, P1231, DOI 10.1080/09500349808230913

[2] HELICAL-WAVE-FRONT LASER-BEAMS PRODUCED WITH A SPIRAL PHASEPLATE [J].