Mirando Amal, Zang Yimin, Zhan Qiwen, Chong Andy
Opt Express. 2021 Sep 13;29(19):30426-30435. doi: 10.1364/OE.431882.
Recently, a spatiotemporal optical vortex (STOV) with a transverse orbital angular momentum (OAM) has been generated from coherent ultrafast pulses using mode-locked lasers. In contrast, we demonstrate theoretically and experimentally that a STOV can be generated from a light source with partial temporal coherence with fluctuating temporal structures. By eliminating the need of mode-locked laser sources, the partially coherent STOV will serve as a convenient and cost-effective transverse OAM source.
最近，利用锁模激光器从相干超快脉冲中产生了具有横向轨道角动量（OAM）的时空光学涡旋（STOV）。相比之下，我们通过理论和实验证明，STOV可以从具有波动时间结构的部分时间相干光源中产生。通过无需锁模激光源，部分相干的STOV将成为一种方便且经济高效的横向OAM源。
