Stokes Dynamic Polarimeter for Non-Organic and Organic Samples Characterization

The light polarization properties provide relevant information about linear-optical media quality and condition. The Stokes-Mueller formalism is commonly used to represent the polarization properties of the incident light over sample tests. Currently, different Stokes Polarimeters are mainly defined...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 22; no. 6; p. 2155
Main Authors Almanza-Ojeda, Dora-Luz, Rodriguez-Sotelo, Daniela, Castro-Sanchez, Rogelio, Martinez-Celorio, Rene, Ibarra-Manzano, Mario-Alberto
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 10.03.2022
MDPI
Subjects
Arrays
Biological materials
Biosensors
Data cards
Image processing
Image Processing, Computer-Assisted
Incident light
Laser beams
Light
light polarization
Mueller matrix
Optical properties
photoelastic modulator
Polarimeters
Software
Stepping motors
surface fruit
synchronization
Tissues
Mueller matrix
synchronization
photoelastic modulator
surface fruit
light polarization
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Summary:The light polarization properties provide relevant information about linear-optical media quality and condition. The Stokes-Mueller formalism is commonly used to represent the polarization properties of the incident light over sample tests. Currently, different Stokes Polarimeters are mainly defined by resolution, acquisition rate, and light to carry out accurate and fast measurements. This work presents the implementation of an automatic Stokes dynamic polarimeter to characterize non-biological and biological material samples. The proposed system is configured to work in the He-Ne laser beam's reflection or transmission mode to calculate the Mueller matrix. The instrumentation stage includes two asynchronous photoelastic modulators, two nano-stepper motors, and an acquisition data card at 2% of accuracy. The Mueller matrix is numerically calculated by software using the 36 measures method without requiring image processing. Experiments show the efficiency of the proposed optical array to calculate the Mueller matrix in reflection and transmission mode for different samples. The mean squared error is calculated for each element of the obtained matrix using referenced values of the air and a mirror. A comparison with similar works in the literature validates the proposed optical array.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s22062155