Based on the propagation law of partially coherent light, 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。
2
The generalized expression for the phase-space product Q of a beam generated from a partially coherent source is presented by using coherent-mode representation of partially coherent beams.