一类新平顶光束的束传播因子
Propagation factor of a new kind of flattened-top beam
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摘要: 基于迭加原理,引入了利用双曲余弦-高斯光束的相干迭加而得的新光束,结果表明这类迭加光场的场强分布在适当参数条件下可具有平顶结构,并且分析了这类迭加所得的平顶光束的束传播因子与束参数的关系。Abstract: A new kind of light beam generated from superposing cosh-Gaussian beams is proposed. Two types of superposing light field with different weight coefficients are disscussed in detail. It was found that the beam profiles have a nearly flat top but its sides reduce contiunously for suitable parameters. The beam may also be a solution of the paraxial wave equation for propagation in complex optical systems because the equation is linear. The propagation factor of cosh-Gaussian beams is calculated in this article.
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Key words:
- cosh-gaussian beam /
- propagation factor /
- flattened light beam
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