摘要
文中通过把环形光阑函数展开为复高斯函数的方法,推导出了高阶贝塞尔-高斯光束通过环形光阑的传输近似解析公式,并对高阶贝塞尔-高斯光束通过圆环形硬边光阑的传输特性进行了研究,分析了不同内外半径下的光阑对输出光束的影响。分析结果表明,衍射特性与光阑宽度、光阑内径等因素有关,当光阑内径和光阑宽度取值适中时,会出现衍射光强相等的两个峰。
The propagation approximation analytic expression and the propagation properties of the high-order Bessel-Gaussian beam through the annular aperture has been studied by using the method of compound Gaussian function. The effect of the output beam caused by different inner and outer radius of the annular aperture also has been analyzed. The results show that, the diffractive properties relative with the width and inner radius of the diaphragm. The same intensity peaks will appear under proper value of the inner radius and width of the annular aperture.
出处
《激光与红外》
CAS
CSCD
北大核心
2007年第6期534-536,共3页
Laser & Infrared
关键词
高阶贝塞尔-高斯光束
环行光阑
传输特性
high-order Bessel-Gaussian beam
annular aperture
propagation properties
作者简介
李汝烯（1963-），男，副教授，主要从事激光光束变换方面的研究。E-mail：ynruxi@21cn．com
