This paper discusses a new concept appeared recently: the diffraction -free beam, whose physical principles and future applications are also discussed.
本文介绍了国际学术界新近提出的无衍射光束概念，对该光束的物理机制和应用前景进行了讨论。
This paper discusses a new concept appeared recently: the diffraction -free beam, whose physical principles and future applications are also discussed.
本文介绍了国际学术界新近提出的无衍射光束概念，对该光束的物理机制和应用前景进行了讨论。
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