Revival of the dark core in scattered optical vortices

被引：0

作者：

Reddy, Salla Gangi ^{[1
]}

Kumar, Ashok ^{[1
]}

Prabhakar, Shashi ^{[1
]}

Singh, R. P. ^{[1
]}

机构：

[1] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

OPTICAL MODELING AND PERFORMANCE PREDICTIONS VI | 2013年 / 8840卷

关键词：

Optical vortices; dark core; coherence; far field intensity distribution; GENERATION; BEAMS;

D O I：

10.1117/12.2023037

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：

We have experimentally observed the revival of the dark core in the far field intensity distribution in optical vortices after scattering through rotating ground glass plate. The diameter and darkness of the core is independent of the speed of the rotating ground glass plate. They depend on the spot size and azimuthal index of the beam incident on it. This shows that the spatial coherence of the scattered light is independent of the speed of the rotating ground glass plate. Our experimental results are in good agreement with the numerical results based on the theory given by Wang, Cai and Korotkova (Opt. Exp. 17, 22366 (2009)).

引用

页数：6

共 17 条

[1]

Asakura T., 1970, Opto-Electronics, V2, P115, DOI 10.1007/BF01415089

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