Optical Coherence Theory

Optical Coherence Theory describes how light waves maintain a predictable phase relationship over a certain distance or time, enabling detailed measurements of tiny structures. It involves analyzing the interference of light waves to determine differences in distance or tissue composition with high precision. This principle is the foundation of techniques like Optical Coherence Tomography (OCT), which produces detailed, cross-sectional images of biological tissues. By capturing how light reflects from internal features, coherence theory allows non-invasive, high-resolution imaging of structures that are otherwise difficult to see, making it valuable in medical diagnostics and scientific research.