四类光束通过圆孔的衍射特性  

Diffraction Properties of Four Kinds of Light Beams Through Circular Aperture

作　　者：林梅[1] 

机构地区：[1]江西工业工程职业技术学院,江西萍乡337055

出　　处：《煤炭技术》2009年第10期152-154,共3页Coal Technology

摘　　要：为了进一步研究贝塞耳光束,贝塞耳-高斯光束的衍射特性,本文应用标量衍射理论,分别计算了4类典型光束,即平面波、高斯光束、贝塞耳光束和贝塞耳-高斯光束,通过圆孔硬边光阑后的轴向和横向光强分布。通过与熟知的平面波和高斯光束的衍射场分布进行比较分析,总结了贝塞耳光束,贝塞耳-高斯光束通过光阑后的衍射传播特点。In order to further study the diffraction properties of a Bessel beam and Bessel - Gaussian beam, the scalar diffraction theory is employed in this paper to calculate the axial and transverse intensity distributions of the plane wave, Ganssian beam, Bessel and Bessel - Gaussian beam, respectively, when they propagate through a circular aperture. The properties of diffractive propagation of the Bessel and Bessel - Ganssian beams are summarized by comparing the diffractive field distributions of the well known plane wave and Ganssian beam.

关 键 词：菲涅耳衍射 夫琅和费衍射 平面波 高斯光束 贝塞耳光束 贝塞耳-高斯光束 

分 类 号：O43[机械工程—光学工程]