<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sun, Chengwei</style></author><author><style face="normal" font="default" size="100%">Li, Hongyun</style></author><author><style face="normal" font="default" size="100%">Qihuang Gong</style></author><author><style face="normal" font="default" size="100%">Chen, Jianjun</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultra-small and broadband polarization splitters based on double-slit interference</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://scitation.aip.org/content/aip/journal/apl/108/10/10.1063/1.4943635</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">108</style></volume><pages><style face="normal" font="default" size="100%">101106</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span&gt;An ultra-small and broadband&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;polarization&lt;/span&gt;&lt;span&gt;&amp;nbsp;splitter is numerically and experimentally demonstrated based on the double-slit interference in a polymer-film-coated double-slit structure. The hybrid&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;slab waveguide&lt;/span&gt;&lt;span&gt;(air-polymer-Au) supports both the transverse-magnetic and transverse-electric modes. The incident beam from the back side can excite these two guided modes of orthogonally polarized states in the hybrid structure. By exploiting the difference slit widths and the large mode&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;birefringence,&lt;/span&gt;&lt;span&gt;&amp;nbsp;these two guided modes propagate to the opposite directions along the front&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;metal surface.&lt;/span&gt;&lt;span&gt;&amp;nbsp;Moreover, the short interference length broadens the operation bandwidth. Experimentally, a&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;polarization&lt;/span&gt;&lt;span&gt;&amp;nbsp;splitter with a lateral dimension of only about 1.6 &lt;/span&gt;&lt;span class=&quot;jp-italic&quot;&gt;μ&lt;/span&gt;&lt;span&gt;m and an operation bandwidth of 50 nm is realized. By designing the double-slit structure in a hybrid strip&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;waveguide,&lt;/span&gt;&lt;span&gt;&amp;nbsp;the device dimension can be significant downscaled to about 0.3 × 1.3 &lt;/span&gt;&lt;span class=&quot;jp-italic&quot;&gt;μ&lt;/span&gt;&lt;span&gt;m&lt;/span&gt;&lt;span&gt;2&lt;/span&gt;&lt;span&gt;. Such an ultra-small and broadband&amp;nbsp;&lt;/span&gt;&lt;span class=&quot;named-content&quot;&gt;polarization&lt;/span&gt;&lt;span&gt;&amp;nbsp;splitter may find important applications in the integrated photonic circuits.&lt;/span&gt;&lt;/p&gt;</style></abstract></record></records></xml>