Angle of polarized light (AOP) Property for optical classification of the crosslinked polymer

[Display omitted] •Light-matter interaction has been profoundly manipulated for sample material classification. However, optical classification of sample through the polarized light-matter interaction still remain underexplored and limited only to intensity of polarized light instead of angle of polarized light for its degree of polarization. Measurement of the degree of polarization within a sample or a medium becomes easier with unknown refractive index and without the need of sample labelling or tagging procedure in this study. Thus, this work was conducted mainly to determine the angle of polarized light properties for optical classification of the crosslinked polymer. Determination of the angle of polarized light was conducted in series order of polarization measurement techniques such as light polarization by absorption, light polarization by transmission and light polarization by scattering. At the end of the experiment, the agar-based polymer has been successfully differentiated and classified into two group of weight concentration due to its polarizability or angle of polarized light properties. Group 1 represents the AOP value (aopt1-aopn) for a test sample oft1 = 3.1 %, 3.2, and 3.3 % with comparison to the normal sample (n = 3.0 %) and Group 2 represents the AOP value (aopt2-aopn) for the test sample oft2 = 3.4 %, 3.6 % and 3.7 % with comparison to the normal sample (n = 3.0 %). Light-matter interaction has been profoundly studied for sample material classification. However, the optical classification of the sample through the polarized light-matter interaction remains underexplored. It is limited to the measurement of intensity instead of the angle of polarized light (AOP) for its degree of polarization. Measurement of the degree of polarization within a material or a medium becomes easier with a simple, low-cost and direct measurement without the need of any probing or labelling agent. Thus, this investigation was conducted mainly to determine the angle of polarized light (AOP) property of the crosslinked polymer using our proposed polarization measurement technique as an alternative approach of the material classification. The angle of polarized light (AOP) of each polymer was determined in combination property of polarization by absorption, transmission, and scattering. Our proposed scattered angle (ס=90°, 100°, 110°, and 120°) successfully measured the AOP of each polymer that can be classified into two groups. Group 1 represents the AOP v