%0 Journal Article
%T Partial Bessel electromagnetic wave<br>部分Bessel形电磁波
%A Li Liang-Sheng
%A Yan Hua
%A Hou Zhao-Guo
%A Yin Hong-Cheng
%A <br>李粮生
%A 闫华
%A 侯兆国
%A 殷红成
%J 物理学报
%D 2013
%I 
%X We present the spatially self-bending solutions (the partial Bessel functions) of the Maxwell equations, where the self-bending wave can be produced through launching a group of plane waves that interfere with each other by modulating their initial phases and the emission directions. The self-bending electromagnetic waves accelerating in a circular trajectory preserve the beam shape within a certain propagation distance. Unlike Ariy wave packet, the bending angle of the new self-accelerating wave can be much larger than that of Ariy beam. The Poynting vector of the half Bessel beam shows that the main lobe maintains a propagation-invariant structure and can complete a turn close to 180°. In addition, one pair of half Bessel electromagnetic waves is forbidden to propagate inside a certain area where the designed beam generates the self-shielding region.
%K Bessel beam
%K self-bending
%K self-shielding<br>Bessel波
%K 自弯曲
%K 自屏蔽
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=96293AEB9294B34DBFD69B1049AF002C&yid=FF7AA908D58E97FA&iid=38B194292C032A66&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0