Vectorial polarimeter using an inhomogeneous polarization state generator

Kenny, Fiona; Herrera, Obed; Lara, David; Dainty, Chris

doi:10.1364/fio.2011.fthq5

Cited by 4 publications

(5 citation statements)

References 5 publications

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“…Since in polarimetric techniques at least four linearly independent states of polarization at the input of a sample are required for a complete Mueller matrix characterization [36], NUTP beams can be profitably used as parallel polarization state generators [16,35,39,[59][60][61]. Moreover, the invariance upon propagation of the polarization pattern of the input beam can be an advantage in these systems because the sample can be positioned at any transverse plane along the beam path, and no imaging systems are required after the sample [16,39,59].…”

Section: Discussionmentioning

confidence: 99%

Mueller Matrix Polarimetry with Invariant Polarization Pattern Beams

et al. 2021

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A wide class of nonuniformly totally polarized beams that preserve their transverse polarization pattern during paraxial propagation was studied. Beams of this type are of interest, in particular, in polarimetric techniques that use a single input beam for the determination of the Mueller matrix of a homogeneous sample. In these cases, in fact, it is possible to test the sample response to several polarization states at once. The propagation invariance of the transverse polarization pattern is an interesting feature for beams used in these techniques, because the polarization state of the output beam can be detected at any transverse plane after the sample, without the use of any imaging/magnifying optical system. Furthermore, exploiting the great variety of the beams of this class, the ones that better fit specific experimental constrains can be chosen. In particular, the class also includes beams that present all possible polarization states across their transverse section (the full Poincaré beams (FPB)). The use of the latter has recently been proposed to increase the accuracy of the recovered Mueller matrix elements. Examples of FPBs with propagation-invariant polarization profiles and its use in polarimetry are discussed in detail. The requirement of invariance of the polarization pattern can be limited to the propagation in the far field. In such a case, less restrictive conditions are derived, and a wider class of beams is found.

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Section: Discussionmentioning

confidence: 99%

Mueller Matrix Polarimetry with Invariant Polarization Pattern Beams

et al. 2021

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“…Recently, the use of non uniformly polarized beams has been proposed in order to simultaneously obtain a spatial distribution of SoP's at the entrance of the sample, instead of a time sequence of SoP's [16][17][18][19]. In this case, image analysis of the beam intensity after a polarization state analyzer or direct Stokes parameters measurement at different points of the transverse section of the beam can be performed to obtain the sample's Mueller matrix [18,19].…”

Section: Introductionmentioning

confidence: 99%

Polarimetry with azimuthally polarized light

Sande

Piquero

Santarsiero

2018

Optics Communications

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Nonuniformly polarized light can be used for Mueller polarimetry of homogeneous linear samples. In this work, a set up based on using azimuthally polarized input light and a modified commercial light polarimeter is proposed and developed. With this set up, a Mueller submatrix of a sample can be obtained by measuring the Stokes parameters at only three different positions across the output beam section. Symmetry constraints for linear deterministic samples allow the complete Mueller matrix to be deduced for this kind of specimens. The experimental results obtained for phase plates and for a linear polarizer confirm the validity of the proposed method.

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“…Several techniques have been proposed to improve the polarization state generator, the analyzer, or both [11,13,[16][17][18][19][20][21][22][23][24][25][26][27]. Some of them are faster or easier to apply and others do not require many changes in the experimental arrangement, so that potential problems, such as misalignments, are reduced.…”

Section: Introductionmentioning

confidence: 99%

“…Some of them are faster or easier to apply and others do not require many changes in the experimental arrangement, so that potential problems, such as misalignments, are reduced. In particular, the use of suitably designed beams presenting a nonuniform distribution of the polarization state across their transverse profile has been proposed [21,22]. If states of polarization represented by four linearly independent Stokes vectors are present in the beam cross section, the Mueller matrix of a sample can be obtained from a relatively small number of measurements on imaging the beam profile onto the sample.…”

Section: Introductionmentioning

confidence: 99%

Spirally polarized beams for polarimetry measurements of deterministic and homogeneous samples

Sande

Santarsiero

Piquero

2017

Optics and Lasers in Engineering

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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

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Vectorial polarimeter using an inhomogeneous polarization state generator

Cited by 4 publications

References 5 publications

Mueller Matrix Polarimetry with Invariant Polarization Pattern Beams

Mueller Matrix Polarimetry with Invariant Polarization Pattern Beams

Polarimetry with azimuthally polarized light

Spirally polarized beams for polarimetry measurements of deterministic and homogeneous samples

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