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Twisted sinc-correlation Schell-model array beams
DOI:10.1364/OE.497323.png)
Abstract
En 中文
We introduce a class of twisted sinc-cor relation partially coherent array sources, by applying the construction theory of correlation function. Spectral density of such novel focused beam propagating in free space is analyzed. It is shown that the intensity distribution presents a good twisted effect and splitting phenomenon upon propagation. The array dimension, the intensity distribution and spatial distribution of the lobes can be flexibly regulated by altering the source parameters. We also explore the spatial evolution of multiple correlation singularities of this light field, where the phase distribution appears as a rotational spiral windmill profile during propagation. Furthermore, the coherence orbital angular momentum of the twisted source beam is investigated. These findings could be useful in the particle manipulation and free-space optical communication. & COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
PROPAGATION
SERIES
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W
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