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's features, such as roughness and texture. This non-contact method allows for high-resolution measurements without damaging the sample. These devices are widely used in various industries, including semiconductors, materials science, and biotechnology. By providing accurate surface measurements, optical profilometers help in quality control, research, and development, ensuring that products meet specific performance standards and specifications.