Thin-film optics is the study of light behavior as it interacts with thin layers of materials, typically ranging from a few nanometers to several micrometers in thickness. These thin films can cause various optical phenomena due to the interference of light waves reflected and transmitted at the boundaries of the film. ### Key Concepts in Thin-Film Optics: 1. **Interference**: When light waves reflect off the upper and lower boundaries of a thin film, they can interfere with one another.
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