Symmetric hybrid surface plasmon polariton waveguides for 3D photonic integration Bian, Yusheng ; Zheng, Zheng ; Zhao, Xin ; Zhu, Jinsong ; Zhou, Tao Abstract Publication: Optics Express Pub Date: November 2009 DOI: 10.1364/OE.17.021320 Bibcode: 2009OExpr..1721320B