Fourier Optics - Overview of Light Propagation in Homogeneous, Source-free Media

Overview of Light Propagation in Homogeneous, Source-free Media

Light can be described as a waveform propagating through free space (vacuum) or a material medium (such as air or glass). Mathematically, the (real valued) amplitude of one wave component is represented by a scalar wave function u that depends on both space and time:

where

represents position in three dimensional space, and t represents time.

Read more about this topic:  Fourier Optics

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