2 papers
physics.optics2023
Deterministic vortices evolving from partially coherent fields
Wenrui Miao, Yongtao Zhang, Greg Gbur
It has long been assumed that there is an intrinsic conflict between optical vortices and partial coherence, in that deterministic phase vortices do not appear in partially coheren…
physics.optics2020
Correlation-induced orbital angular momentum changes
Yongtao Zhang, Olga Korotkova, Yangjian Cai +1
We demonstrate that the orbital angular momentum flux density of a paraxial light beam can change on propagation in free space. These changes are entirely due to the spatial cohere…