[1] BARNES W L, DEREUX A, EBBESEN T W. Surface plasmon subwavelength optics[J]. Nature, 2003, 424(8): 824-830.
[2] BOZHEVOLNYI S I, VOLKOV V S, DEVAUX E, et al. Channel Plasmonpolariton guiding by subwavelength metal grooves[J]. Physical Review Letters, 2005, 95: 0468021-4.
[3] PILE D F P, OGAWA T, GRAMOTNEV D K, et al. Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding[J]. Applied Physics Letters, 2005, 87(6): 061106.
[4] MORENO E, RODRIGO S G, BOZHEVOLNYI S I, et al. Guiding and focusing of electromagnetic fields with wedge Plasmon polaritons[J].Physical Review Letters, 2008, 100(2): 023901.
[5] YATSUI T, KOUROGI M, OHTSU M. Plasmon waveguide for optical far/nearfield conversion[J]. Applied Physics Letters, 2001, 79: 4583-4585.
[6] BOLTASSEVA A, VOLKOV V S, NIELSEN R B, et al. Triangular metal wedges for subwavelength Plasmonpolariton guiding at telecom wavelengths[J]. Optics Express, 2008, 16(8): 5252-5260.
[7] LIU L, HAN Z, HE S. Novel surface plasmon waveguide for high integration[J]. Optics Express, 2005, 13(17): 6645-6650.
[8] OULTON R F, SORGER V J, GENOV D A, et al. A hybrid plasmonic waveguide for subwavelength confinement and longrange propagation[J]. Nature Photonics, 2008, 2(8): 496-500.
[9] ZOU C, SUN F, XIAO Y, et al. Plasmon modes of silver nanowire on a silica substrate[J]. Applied Physics Letters, 2010, 97(18): 1831021831023.
[10] LU Q, CHEN D, WU G. Lowloss hybrid plasmonic waveguide based on metal ridge and semiconductor nanowire[J]. Optics Communications, 2013, 289: 64-68.
[11] ZHANG J, CAI L, BAI W, et al. Hybrid plasmonic waveguide with gain medium for lossless propagation with nanoscale confinement[J]. Optics Letters, 2011, 36(12): 2312-2314.
[12] DAI D, HE S. A siliconbased hybrid plasmonic waveguide with a metal cap for a nanoscale light confinement[J]. Optics Express, 2009, 17(19): 16646-16653.
[13] GUO J, PAN Z. Guided surface plasmon mode of semicircular cross section silver nanoridges[J]. Optical Society of America, 2012, 29(9): 2548-2553.
[14] BIAN Y, ZHENG Z, LIU Y, et al. Hybrid wedge plasmon polariton waveguide with good fabricationerrortolerance for ultradeepsubwavelength mode confinement[J]. Optics Express, 2011, 19(23): 22417-22422.
[15] BIAN Y, ZHENG Z, ZHAO X, et al. Symmetric hybrid surface plasmon polariton waveguides for 3D photonic integration[J]. Optics Express, 2009, 17(23): 21320-21325.
[19] QIN Xiaojuan, GUO Yanan, XUE Wenrui. Propagation properties of a surface plasmonic waveguide with a doublesquareshaped air core[J]. Acta Photonica Sinica, 2010, 30(12): 3537-3541.