Experimental investigation on partially coherent higher-order non-diffractive beams

doi:10.1088/1674-1056/20/9/094203

中国物理B ›› 2011, Vol. 20 ›› Issue (9): 94203-094203.doi: 10.1088/1674-1056/20/9/094203

Experimental investigation on partially coherent higher-order non-diffractive beams

陈光明, 华黎闽, 林惠川, 蒲继雄

College of Information Science & Engineering, Huaqiao University, Quanzhou 362021, China

收稿日期:2011-02-17 修回日期:2011-04-16 出版日期:2011-09-15 发布日期:2011-09-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60977068) and the Foundations of the State Key Laboratory for Transient Optical and Photonic Technology of Chinese Academy of Sciences (Grant No. SKL ST200912).

Experimental investigation on partially coherent higher-order non-diffractive beams

Chen Guang-Ming(陈光明)^a)b), Hua Li-Ming(华黎闽)^a), Lin Hui-Chuan(林惠川)^a), and Pu Ji-Xiong(蒲继雄)^a)†

^a College of Information Science & Engineering, Huaqiao University, Quanzhou 362021, China; ^b College of Fujian Education, Fuzhou 350025, China

Received:2011-02-17 Revised:2011-04-16 Online:2011-09-15 Published:2011-09-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60977068) and the Foundations of the State Key Laboratory for Transient Optical and Photonic Technology of Chinese Academy of Sciences (Grant No. SKL ST200912).

摘要/Abstract

摘要： We experimentally study the generation of a partially coherent non-diffractive beam by focusing a partially coherent vortex beam with an axicon. The investigation results show that when the partially coherent vortex beam is focused by the axicon, the beam is transferred into a partially coherent higher-order non-diffractive beam. In the non-diffractive zone, the transverse intensity distribution of the partially coherent higher-order non-diffractive beam is invariant during propagation. In addition, the range of the non-diffractive zone is related to the coherence of the partially coherent vortex beam. The poorer the coherence of the partially coherent vortex beam, the shorter the range of the non-diffractive zone.

关键词: physical optics, higher-order non-diffractive Bessel beam, axicon, partially coherence

Abstract: We experimentally study the generation of a partially coherent non-diffractive beam by focusing a partially coherent vortex beam with an axicon. The investigation results show that when the partially coherent vortex beam is focused by the axicon, the beam is transferred into a partially coherent higher-order non-diffractive beam. In the non-diffractive zone, the transverse intensity distribution of the partially coherent higher-order non-diffractive beam is invariant during propagation. In addition, the range of the non-diffractive zone is related to the coherence of the partially coherent vortex beam. The poorer the coherence of the partially coherent vortex beam, the shorter the range of the non-diffractive zone.

Key words: physical optics, higher-order non-diffractive Bessel beam, axicon, partially coherence

中图分类号: (Diffraction and scattering)

42.25.Fx

42.25.Kb (Coherence)

陈光明, 华黎闽, 林惠川, 蒲继雄. Experimental investigation on partially coherent higher-order non-diffractive beams[J]. 中国物理B, 2011, 20(9): 94203-094203.

Chen Guang-Ming(陈光明), Hua Li-Ming(华黎闽), Lin Hui-Chuan(林惠川), and Pu Ji-Xiong(蒲继雄) . Experimental investigation on partially coherent higher-order non-diffractive beams[J]. Chin. Phys. B, 2011, 20(9): 94203-094203.

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Experimental investigation on partially coherent higher-order non-diffractive beams

Experimental investigation on partially coherent higher-order non-diffractive beams

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