Generation of Diffraction-compensated Beams through a Phase Plate

摘要：

　　We present an alternative method to generate non-diffracting beams.It consists in focusing a gaussian beam in the vicinity of a circular phase plate which transmission coefficient exceeds 90%.The latter is a binary diffractive optical element which introduces a phase shift(Φ)in the central part of the incident beam.The dephasing area,which is circular,consists of a thin film of ITO(Indium Tin Oxide)disk of diameter D deposited on a silica substrate.Using our set-up,the diffracted beam can then be collimated to generate a diffraction-compensated beam.

作者: Marc Brunel Huanhuan Shen Driss Mgharaz Sébastien Coetmellec Qiulin Huang Kamel Ait Ameur

作者单位: UMR 6614 CORIA CNRS,Avenue de lUniversité,BP 12,76801 Saint-Etienne du Rouvray Cedex,France School of Electronic Engineering,Xidian University,Xian 710071,China CIMAP,ENSICAEN,CNRS,CEA/IRAMIS,Université de Caen,14050 Caen Cedex,France

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)

会议地点: 苏州

会议语种:英文

页码: 759-762

在线出版日期: 2011-09-01（万方平台首次上网日期，不代表论文的发表时间）