光学精密工程2009，Vol.17Issue(10)：2506-2511,6.
轴棱锥顶点加工误差的修正
Modification of vertex manufacture error on an axicon
摘要
Abstract
Based on the Fresnel diffraction theory,the influence of the vertex manufacture precision of an axicon on the light propagation is analyzed in detail.It is points out that the axicon is equal to a plano-convex lens for focusing the beams when the vertex is machined to a circle.However,the blunt-tip region of a real axicon can be described actually by a hyperbola,where the aberration non-diffracting beams will be formed due to the interference oscillation.This paper presents the theoretical derivations of diffractive fields from the axicon with different vertexes and analyzes and simulates their characteristics of beam propagation and transformation.Finally,a method for modifying the influence of a hyperbola-tip axicon is proposed to correct the interference effect and to obtain an approximate non-diffraction beam.It is shown that proposed method has guiding significance to the application of the real manufacture axicon.关键词
轴棱锥/顶点加工精度/无衍射光束Key words
axicon/vertex manufacture precision/non-diffracting beam分类
数理科学引用本文复制引用
吴逢铁,江新光..轴棱锥顶点加工误差的修正[J].光学精密工程,2009,17(10):2506-2511,6.基金项目
国家自然科学基金资助项目(No.60977068) （No.60977068）
泉州市科技重点资助项目(No.2009G4) （No.2009G4）
