Fiftyyears ago this Sunday, Theodore Maiman and his fellow scientists atHughes Research Laboratory shined a high-power flash lamp on a rubyrod, triggering a beam of coherentlight: the first laser.
Based on the propagation law of partially coherentlight, spectral changes of a polychromatic Gaussian-Schell model beam propagating in free space is studied.
基于部分相干光的传输定律,研究了多色高斯·谢尔模型光束在自由空间中传输的光谱变化。
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It is shown that the atmospheric turbulence gives rise to spectral shift and to beam spreading of spatially partially coherent polychromatic light whether the scaling law is satisfied or not.