Polarimetry is the study of the polarization of light, which refers to the orientation of light waves as they travel. Light can vibrate in different directions, and polarimetry measures these orientations to gain insights into various materials and their properties. This technique is widely used in fields like chemistry, biology, and astronomy. In polarimetry, instruments called polarimeters are used to analyze how light interacts with substances. For example, sugar solutions can rotate the plane of polarized light, and measuring this rotation helps determine the concentration of sugar. This method is essential in quality control and research in many scientific disciplines.