Optical Interfaces: Reflection and Refraction

This lecture covers the reflection and refraction of light waves at optical interfaces between dielectric media with different refractive indices. It explains the Fresnel equations, the continuity of fields, and the consequences for optical systems. The lecture also discusses internal and external reflection, the Brewster angle, and the intensity of transmission and reflection. Practical applications such as high-quality camera lenses and anti-reflective coatings are also explored.