Experiments and theory of generation of nondiffracting beams array with arbitrary order by phase holograms

Abstract

Abstract:

Nondiffracting beams are of interest for optical potential applications owing to their properties of smaller central spot, longer propagation distance and so on. A phase-holograms-based method of generation of nondiffracting beams array with arbitrary order is proposed. If a phase-hologram-array that possesses the same eigenvalue is utilized, a unique bright annulus will be generated in the Fourier plane because of the shift-invariance of Fourier transform and the consistency of phase hologram design. Then through the Fourier transform again, a nondiffracting beams array will be generated. Furthermore, the location and the order of each individual nondiffracting beam can be customized according requirement. Experimental results are in good agreement with the numerical simulation and the theoretical analysis.

Key words: phase hologram, nondiffracting beams array, spatial light modulator

CLC Number:

O438.1

HU Mingxi,TIAN Jindong, WANG Ruisong, LI Dong . Experiments and theory of generation of nondiffracting beams array with arbitrary order by phase holograms[J]. J4, 2011, 28(2): 157-162.

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