| Summary: | 碩士 === 國立交通大學 === 光電工程研究所 === 104 === Coherence is one of the most important properties of light, which describes the correlation of the phase of two different fields separated by space and time. Light sources with different degree of coherence are applied to different situations. For examples, lasers with high degree of coherence can be used to produce speckles; partial coherent lights are less affected by atmospheric turbulence, and hence are useful in communications. In view of the inherent randomness of spontaneous emission, it would be more accurate to model lights by means of random processes than deterministic signals, which are assumed in the configuration under wave optics. Besides, Fourier optics provides an essential theory for signal processing. Combining Fourier optics and coherence theory would lead to a promising realm, which is called Phase-space optics.
The goal of this thesis is not only to introduce the foregoing knowledge in turns, but also to give the big picture of coherence theory and related subjects.
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