Optical profilometry is a non-contact measurement technique used to precisely characterize surface topography. It operates on the principle of light interference, where a light beam is projected onto a surface and the reflected light is analysed to determine surface features. This method can capture surface heights with nanometre precision by measuring the phase shifts and intensity variations of the reflected light. Applications of optical profilometry span across various fields including semiconductor manufacturing, materials science, and biomedical engineering. It is particularly valuable for inspecting surface roughness, texture, and step heights in microelectronics, assessing wear and corrosion in materials, and evaluating surface quality in medical implants.

In our lab, we utilize the Bruker Contour Elite K optical profilometer, which offers several advantages. It provides high-resolution 3D surface measurements, rapid data acquisition, and comprehensive analysis capabilities. The system's advanced optics and software ensure accurate, repeatable results, making it an essential tool for detailed surface characterization and quality control.