An optical profilometer is a precision instrument used to measure the surface topography of materials. It employs light, often from a laser, to capture detailed images of a surface, allowing for the analysis of features such as roughness, texture, and height variations. This non-contact method is beneficial for delicate or small samples. These devices are widely used in various industries, including semiconductors, materials science, and biotechnology. By providing accurate surface measurements, optical profilometers help improve product quality and performance, making them essential tools in research and manufacturing processes.