强激光与粒子束2011，Vol.23Issue(8)：2069-2073,5.DOI:10.3788/HPLPB20112308.2069
基于调制光束的空间相干性获得局域空心光束
Generation of bottle beam by modulating spatial coherence of light beam
摘要
Abstract
Generation of bottle beam by modulating the spatial coherent coefficient of partially coherent beams is investiga ted. Based on the theorem of van Cittert-Zernike and scalar diftractive theory, partially coherent beam with particular coherent co efficient is constructed. And focused properties of this kind of partially coherent beam is studied. Based on theoretical results, an optical system to achieve the special partially coherent beams , and focus partially coherent beams with a thin lens is designed. The results indicate that particular partially coherent beams can be converted into bottle beam after focusing by thin lens. Moreover, the influence of parameters of optical system and focus length of thin lens on construction of the bottle beam is studied. The grea ter of lens focal length and interception ratio, the larger size of the bottle beam.关键词
局域空心光束/部分相干光/相干调制/环形光阑/范西泰特—策尼克定理Key words
bottle beams partially coherent beam/coherence modulations annular light diaphragm/Vancittert-Zernike theorem分类
数理科学引用本文复制引用
陈光明,林惠川,蒲继雄..基于调制光束的空间相干性获得局域空心光束[J].强激光与粒子束,2011,23(8):2069-2073,5.基金项目
国家自然科学基金项目(60977068) （60977068）
