Ma Liyuan, Ponomarenko Sergey A
Opt Lett. 2014 Dec 1;39(23):6656-9. doi: 10.1364/OL.39.006656.
We introduce a class of partially coherent temporal/spatial sources, optical coherence gratings/lattices that have a Gaussian intensity profile and statistically stationary/homogeneous, periodic temporal/spatial coherence properties. We show that temporal coherence gratings generate partially coherent pulses with periodic spectra, whereas spatial coherence lattices yield far-zone output in the form of periodic lattices of highly directional beams.
我们引入了一类部分相干的时间/空间源,即具有高斯强度分布以及统计上平稳/均匀的周期性时间/空间相干特性的光学相干光栅/晶格。我们表明,时间相干光栅会产生具有周期性光谱的部分相干脉冲,而空间相干晶格则会以高定向光束的周期性晶格形式产生远场输出。