1. Theoretical and experimental studies of a rectangular Laguerre-Gaussian-correlated Schell-model beam.
- Author
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Chen, Yahong, Yu, Jiayi, Yuan, Yangsheng, Wang, Fei, and Cai, Yangjian
- Subjects
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LAGUERRE-Gaussian beams , *COHERENCE (Optics) , *FREE-space optical technology , *MULTIPLICITY of nuclear particles , *SYMMETRY (Physics) - Abstract
We introduce a new kind of partially coherent beam with nonconventional correlation function named rectangular Laguerre-Gaussian-correlated Schell-model (LGCSM) beam, whose degree of coherence is of rectangular symmetry, and analyze its propagation properties. We find that the rectangular LGCSM beam exhibits self-splitting properties on propagation in free space, i.e., the initial single beam spot evolves into ( m + 1) × ( n + 1) beam spots on propagation with m and n being the beam orders, which are totally different from that of a circular or elliptical LGCSM beam. The self-splitting properties of a rectangular LGCSM beam are also different from other self-splitting beam whose initial single beam spot only splits into two or four beam spots on propagation in free space. We also find that a focused rectangular LGCSM beam exhibits splitting and combining properties on propagation. Furthermore, we carry out experimental generation of a rectangular LGCSM beam and verify the splitting and combining properties of such beam focused by a thin lens. The rectangular LGCSM beam will be useful for manipulating multiple particles or attacking multiple targets simultaneously. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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