{"title":"Remarkable laser beams formed by computer-generated optical elements: properties and applications","authors":"V. Soifer, V. Kotlyar, S. Khonina, R. Skidanov","doi":"10.1117/12.677054","DOIUrl":null,"url":null,"abstract":"We deduce and study an analytical expression for Fresnel diffraction of a plane wave by a spiral phase plate (SPP) with an arbitrary-order phase singularity and an analytical expression for far-field diffraction of the Gaussian beam by a SSP with n-th order. The SPP was implemented as a 32-level \"helical\" microrelief on a low-contrast resist using an electron beam. Experiments of diffraction of the Gaussian beam by SPPs with the second-order singularity and of trapping polystyrene beads using computer-generated optical elements are discussed.","PeriodicalId":266048,"journal":{"name":"International Conference on Holography, Optical Recording, and Processing of Information","volume":"66 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Holography, Optical Recording, and Processing of Information","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.677054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We deduce and study an analytical expression for Fresnel diffraction of a plane wave by a spiral phase plate (SPP) with an arbitrary-order phase singularity and an analytical expression for far-field diffraction of the Gaussian beam by a SSP with n-th order. The SPP was implemented as a 32-level "helical" microrelief on a low-contrast resist using an electron beam. Experiments of diffraction of the Gaussian beam by SPPs with the second-order singularity and of trapping polystyrene beads using computer-generated optical elements are discussed.