Optical profilometry is a non-contact measurement technique used to analyze the surface topography of materials. It employs light, often from a laser, to capture detailed images of a surface's features, such as roughness and texture. This method is widely used in various industries, including semiconductors and materials science, to ensure quality control and improve manufacturing processes. The process involves illuminating the surface and measuring the reflected light to create a three-dimensional map of the surface profile. Optical profilometers can achieve high resolution and accuracy, making them valuable tools for research and development, as well as for routine inspections in production environments.