%0 Journal Article
%T Enhancing the emission efficiency in photonic crystal waveguide with coupled waveguide arrays<br>利用耦合波导列提高光子晶体波导辐射
%A Wang Qiong
%A Cui Yi-Ping
%A Yan Chang-Chun
%A Zhang Ling-Ling
%A Zhang Jia-Yu
%A <br>王琼
%A 崔一平
%A 闫长春
%A 张玲玲
%A 张家雨
%J 物理学报
%D 2009
%I 
%X We propose a system of enhanced emission efficiency by employing coupled waveguide arrays to a single-mode photonic crystal waveguide. The FDTD simulation results show that, when the coupled waveguide arrays are placed properly at the exit plane of the single-mode photonic crystal waveguide, the output light can be split into many light beams, and the interference of these light beams can produce a focusing emission beam, which greatly enhances the emission efficiency. In addition, when the row number of the waveguide arrays is larger than a certain value (2N=8), the state of the emission is nearly steady and the most compact structure can be obtained. This type of photonic crystal has potential applications in near-field optics or integrated optics.
%K photonic crystal waveguide
%K emission
%K waveguide arrays
%K coupled waveguides<br>光子晶体波导，
%K 光辐射，
%K 波导列，
%K 耦合波导
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=87F0174C6FE9E19351233AE9E5982A48&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=0B39A22176CE99FB&sid=E947FD4445DA7BA0&eid=6A2E9D0F5619615A&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=16