Focus Shaping of Tightly Focused Axially Symmetric Polarized Beams by Diffractive Optical Elements

摘要：

We study the focus shaping of tightly focused axially-symmetric polarized beams by diffractive optical elements, introduce the basic theory of beam shaping and derive the mathematical expressions of focusing field in a high-NA focusing system. We further design two DOEs to achieve an optical chain and an optical distribution of multiple ultrasmall focused spots with a long depth of focus respectively, which may find wide applications in optical tweezers, optical storage, microscopy and so on.

关键词： Beam shaping axially symmetric polarized beams DOE

作者: Zhehai Zhou

作者单位: School of Optoelectronics Information and Communication Engineering,Beijing Information Science and Technology University,Beijing,China,100192 State Key Laboratory of Precision Measurement Technology and Instruments,Tsinghua University,Beijing,China,100084

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 631-633

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）