%0 Journal Article
%T Tapered dielectric structure in metal as a wavelength-selective surface plasmon polariton focuser<br>
%A Zhang Yang
%A Zhao Qing
%A Liao Zhi-Min
%A Yu Da-Peng
%A <br>
%J 中国物理 B
%D 2009
%I 
%X Symmetric tapered dielectric structures in metal have demonstrated applications such as the nanofocusing of surface plasmon polaritons, as well as the waveguiding of V-channel polaritons. Yet the fabrication of smooth-surfaced tapered structure remains an obstacle to most researchers. We have successfully developed a handy method to fabricate metal-sandwiched tapered nanostructures simply with electron beam lithography. Though these structures are slightly different from conventional symmetric V-shaped structures, systematic simulations show that similar functionality of surface plasmon polariton nanofocusing can still be achieved. When parameters are properly selected, wavelength-selective nanofocusing of surface plasmon polaritons can be obtained.
%K tapered structure
%K surface plasmon
%K focusing
%K finite-difference time-domain<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=D17CD0DCB0B366FC67CF861384ED31E0&yid=DE12191FBD62783C&vid=13553B2D12F347E8&iid=708DD6B15D2464E8&sid=D316078883F793F6&eid=BE51C907883F3489&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0