摘要
利用Collins公式对辐射阵列厄米高斯光束(RHGB)的聚焦特性进行详细研究,推导出RHGB通过会聚系统的传输解析公式。数值计算结果表明在光束并合区域,激光参数(R0,m,n)对其强度分布有较大影响,随着传输距离的增加,RHGB的空间重叠减小,并合光强也随之降低。计算结果可为进一步研究RHGB提供参考。
Focusing property of radial array Hermite -Gaussian beam （ RHGB） is studied in detail by using the Collins formula in this paper .The analytical formula for RHGB through the convergent system is derived .The numerical examples indicate that laser pa-rameters （ R0 ,m,n） have the large influence on the intensity distributions of RHGB , and the space overlap will diminish and the light intensity will drop with the increase of propagation distance .The calculated results can provide references for further study of RHGB .
出处
《西华大学学报（自然科学版）》
CAS
2014年第5期30-32,36,共4页
Journal of Xihua University:Natural Science Edition
关键词
RHGB
聚焦
传输
光强分布
RHGB
focusing
propagation
light intensity
