Journal
FRONTIERS OF OPTOELECTRONICS
Volume 12, Issue 3, Pages 229-248Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s12200-019-0901-x
Keywords
partially coherent vortex beam; phase singularity; correlation singularity; topological charge (TC); coherence length; correlation function
Categories
Funding
- National Natural Science Foundation of China [91750201, 11525418, 11774250, 11804198]
- Project of the Priority Academic Program Development of Jiangsu Higher Education Institutions
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Ever since vortex beams were proposed, they are known for owning phase singularity and carrying orbital angular momentum (OAM). In the past decades, coherent optics developed rapidly. Vortex beams have been extended from fully coherent light to partially coherent light, from scalar light to vector light, from integral topological charge (TC) to fractional TC. Partially coherent vortex beams have attracted tremendous interest due to their hidden correlation singularity and unique propagation properties (e.g., beam shaping, beam rotation and self-reconstruction). Based on the sufficient condition for devising a genuine correlation function of partially coherent beam, partially coherent vortex beams with nonconventional correlation functions (i.e., non-Gaussian correlated Schell-model functions) were introduced recently. This timely review summarizes basic concepts, theoretical models, generation and propagation of partially coherent vortex beams.
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