Propagation characteristics of partially coherent circular Airy beams

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Abstract
The abruptly autofocusing properties of partially coherent circular Airy beam (CAB) with different spatial coherent length are theoretically investigated in this paper. It is found that, as spatial coherent length decreases, the size of the focal spot would increase and the focal intensity would decrease. But the abruptly autofocusing property for partially coherent CAB is still quite obvious, when comparing with the common partially coherent Gaussian beam under the same conditions; and its autofocusing position is less easily influenced by coherence. The influences of initial radius r0 and decaying parameter a on the autofocusing property have also been investigated in the end.
Funding Information
  • National Natural Science Foundation of China (NSFC) (11474254, 11504274)
  • Natural Science Foundation of Zhejiang Province (LQ16A040004)

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