J4 ›› 2012, Vol. 25 ›› Issue (3): 50-53.doi: 10.3976/j.issn.1002-4026.2012.03.010
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LI Yu-Duo, LI Xiang-Ying, ZHOU Li-Feng, WANG Wen-Lei
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Abstract:
We present the partially coherent nature of the annulus vortex beams based on the transmission theory of partially coherent light. We also make a detailed analysis for the annulus vortex beam. We further discover the impact of the change of the relative width s/w0 and the topological charge intensity distribution number m on light intensity distribution in z=0 section. We give the overlapped coherent vortex of two parallel and off-axis partially coherent beams. We eventually analyze the change of light intensity in a overlapped field with the relative distance from axis d/w0 and the coherent parameter α. Moreover, composite coherent light vortex will change into composite light vortex when the paremeter α approaches infinity.
Key words: singularity optics, annulus vortex, composite coherent vortex
CLC Number:
O436
LI Yu-Duo, LI Xiang-Ying, ZHOU Li-Feng, WANG Wen-Lei. The features of partially coherent ring vortex[J].J4, 2012, 25(3): 50-53.
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