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Comprehensive quantitative analysis of vector beam states based on vector field reconstruction

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Title: Comprehensive quantitative analysis of vector beam states based on vector field reconstruction
Authors: Suzuki, Masato Browse this author
Yamane, Keisaku Browse this author →KAKEN DB
Oka, Kazuhiko Browse this author →KAKEN DB
Toda, Yasunori Browse this author →KAKEN DB
Morita, Ryuji Browse this author →KAKEN DB
Issue Date: 10-Jul-2019
Publisher: Nature Publishing Group
Journal Title: Scientific reports
Volume: 9
Start Page: 9979
Publisher DOI: 10.1038/s41598-019-46390-7
Abstract: We demonstrate a comprehensive quantitative analysis of vector beam states (VBSs) by using a vector field reconstruction (VFR) technique integrating interferometry and imaging polarimetry, where the analysis is given by a cylindrically polarized Laguerre-Gaussian (LG) mode expansion of VBSs. From test examples of cylindrically polarized LG mode beams, we obtain the complex amplitude distributions of VBSs and perform their quantitative evaluations both in radial and azimuthal directions. The results show that we generated (l, p) = (1, 0) LG radially polarized state with a high purity of 98%. We also argue that the cylindrically polarized LG modal decomposition is meaningful for the detail discussion of experimental results, such as analyses of mode purities and mode contaminations. Thus the VFR technique is significant for analyses of polarization structured beams generated by lasers and converters.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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