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。
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 continuously 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.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2002年第3期357-360,共4页
High Power Laser and Particle Beams
基金
中南大学科研基金资助项目
湖南省教委科研基金资助项目
