物理学报2011，Vol.60Issue(8)：143-150,8.
X射线相衬成像光子筛
X-ray Zernike apodized photon sieves for phase-contrast microscopy
摘要
Abstract
We present a kind of diffractive lens Zernike apodized photon sieves （ZAPS） whose structure is based on the combination of two concepts：apodized photon sieves and Zernike phase-contrast.Combined with the synchrotron light source,the ZAPS can be used as an objective for high-resolution phase-contrast X-ray microscopy in physical and life sciences.The ZAPS is a single optic unit that integrates the appropriate ±π/2 radians phase shift through selective zone placement shifts in an apodized photon sieve.The focusing properties of the ZAPS can be easily controlled by apodizing its pupil function.An apodized photon sieve with Gaussian pupil is fabricated by lithographic technique and shows that the side-lobes are significantly suppressed at the expense of slightly widening the width of the main lobe.关键词
X射线显微技术/相衬成像/光瞳切趾/光子筛Key words
X-ray microscopy/phase-contrast imaging/pupil apodization/photon sieves分类
数理科学引用本文复制引用
程冠晓,胡超..X射线相衬成像光子筛[J].物理学报,2011,60(8):143-150,8.基金项目
广东省机器人与智能系统重点实验室基金 （）
广东省与中国科学院全面战略合作计划 （）
国家自然科学基金 （）
深圳市基础研究计划 （）
中国科学院知识创新工程重要方向性项目 （）
教育部留学回国人员科研启动基金（批准号：2008-890）资助的课题 （）
