Spirally polarized beams for polarimetry measurements of deterministic and homogeneous samples

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• 作者：Juan Carlos Gonzá ; lez de Sande^a ; ^{jcgsande@ics.upm.es} ; Massimo Santarsiero^b ; Gemma Piquero^c
• 关键词：Polarimetry ; Polarization
• 刊名：Optics and Lasers in Engineering
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：91
• 期：Complete
• 页码：97-105
• 全文大小：886 K
• 卷排序：91

文摘

The use of spirally polarized beams (SPBs) in polarimetric measurements of homogeneous and deterministic samples is proposed. Since across any transverse plane such beams present all possible linearly polarized states at once, the complete Mueller matrix of deterministic samples can be recovered with a reduced number of measurements and small errors. Furthermore, SPBs present the same polarization pattern across any transverse plane during propagation, and the same happens for the field propagated after the sample, so that both the sample plane and the plane where the polarization of the field is measured can be chosen at will. Experimental results are presented for the particular case of an azimuthally polarized beam and samples consisting of rotated retardation plates and linear polarizers.