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Quasi Talbot effect of orbital angular momentum beams for generation of optical vortex arrays by multiplexing metasurface design

Abstract

Quasi Talbot effect of orbital angular momentum (OAM) beams which centers are placed in rotationally symmetric is demonstrated both numerically and experimentally for the first time. Since its multiplication factor is much higher than conventional fractional Talbot effect, the quasi Talbot effect can be used in the generation of vortex beam arrays. A metasurface based on the theory is designed and fabricated to test the validity of this means. The agreement between numerical and measured results suggests the practicability of this method in realization of vortex beam arrays with high integrated level, which may open the new door to achieve various potential uses related to optical vortex arrays in the integrated optical systems for wide ranging applications.

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Publication details

The article was accepted on 29 Nov 2017 and first published on 30 Nov 2017


Article type: Paper
DOI: 10.1039/C7NR07873K
Citation: Nanoscale, 2017, Accepted Manuscript
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    Quasi Talbot effect of orbital angular momentum beams for generation of optical vortex arrays by multiplexing metasurface design

    H. Gao, Y. Li, L. Chen, J. Jin, M. Pu, X. Li, P. Gao, C. Wang, X. Luo and M. Hong, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR07873K

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