Influence of relative parameters on quality of long distance diffraction-free beam

Zheng Weitao; Wu Fengtie; Zhang Qian’an; Cheng Zhiming

doi:10.3788/HPLPB20122410.2331

Volume 24 Issue 10

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(10): 2331-2334

Tang Enling, Yang Minghai, Xiang Shenghai, et al. Microwave diagnosis of electromagnetic radiation produced by hypervelocity impact[J]. High Power Laser and Particle Beams, 2012, 24: 2212-2214. doi: 10.3788/HPLPB20122409.2212

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Zheng Weitao, Wu Fengtie, Zhang Qian’an, et al. Influence of relative parameters on quality of long distance diffraction-free beam[J]. High Power Laser and Particle Beams, 2012, 24: 2331-2334. doi: 10.3788/HPLPB20122410.2331

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Influence of relative parameters on quality of long distance diffraction-free beam

doi: 10.3788/HPLPB20122410.2331

1.
College of Information Science and Engineering,Huaqiao University,Quanzhou 362021,China

Received Date: 2011-11-23
Rev Recd Date: 2012-05-10
Publish Date: 2012-10-15

Abstract

Abstract

The influence of relative parameters, such as the focal length of the convergence lens and the distance between the convergence lens and the axicon, on the propagation distance of long distance diffraction-free beam generated by two axicons is analyzed using ray-tracing method. Numerical simulation is carried out with Mathcad. The results show that, while other conditions are invariable, the propagation distance of long distance diffraction-free beam decreases as the focal length of the convergence lens increases, and rises with the increasing of the distance between the convergence lens and the axicon. The theory is verified by experiment, and the experimental results are consistent with theoretical analysis.
- quasi diffraction-free beam,
- axicon,
- convergence lens,
- ray-tracing,
- propagation distance

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