Terahertz wedge plasmon polaritons.

作者: A. I. Fernández-Domínguez , Esteban Moreno , L. Martín-Moreno , F. J. García-Vidal

DOI: 10.1364/OL.34.002063

关键词: MetamaterialPhysicsOpticsPolaritonWedge (geometry)Transverse planeSurface plasmon polaritonTerahertz radiationPlasmonOptoelectronicsSurface plasmon

摘要: We propose a metamaterial approach to route terahertz waves that features subwavelength confinement in the transverse plane. The guiding mechanism is based on geometrically induced electromagnetic modes sustained by corrugated metallic wedges, whose characteristics resemble those of wedge plasmon polaritons at telecom and optical frequencies. Additionally, frequency selective focusing slowing down radiation proposed waveguides are presented.

参考文章(13)
Esteban Moreno, Sergio G. Rodrigo, Sergey I. Bozhevolnyi, L. Martín-Moreno, F. J. García-Vidal, Guiding and focusing of electromagnetic fields with wedge plasmon polaritons. Physical Review Letters. ,vol. 100, pp. 023901- 023901 ,(2008) , 10.1103/PHYSREVLETT.100.023901
Bradley Ferguson, Xi-Cheng Zhang, Materials for terahertz science and technology Nature Materials. ,vol. 1, pp. 26- 33 ,(2002) , 10.1038/NMAT708
Stefan A. Maier, Steve R. Andrews, L. Martín-Moreno, F. J. García-Vidal, Terahertz surface plasmon-polariton propagation and focusing on periodically corrugated metal wires Physical Review Letters. ,vol. 97, pp. 176805- ,(2006) , 10.1103/PHYSREVLETT.97.176805
Linfang Shen, Xudong Chen, Tzong-Jer Yang, Terahertz surface plasmon polaritons on periodically corrugated metal surfaces. Optics Express. ,vol. 16, pp. 3326- 3333 ,(2008) , 10.1364/OE.16.003326
R. Mendis, D. Grischkowsky, Undistorted guided-wave propagation of subpicosecond terahertz pulses. Optics Letters. ,vol. 26, pp. 846- 848 ,(2001) , 10.1364/OL.26.000846
Kanglin Wang, Daniel M. Mittleman, Metal wires for terahertz wave guiding Nature. ,vol. 432, pp. 376- 379 ,(2004) , 10.1038/NATURE03040
F J Garcia-Vidal, L Martín-Moreno, J B Pendry, Surfaces with holes in them: new plasmonic metamaterials Journal of Optics. ,vol. 7, ,(2005) , 10.1088/1464-4258/7/2/013
Alastair P Hibbins, Benjamin R Evans, J Roy Sambles, Experimental Verification of Designer Surface Plasmons Science. ,vol. 308, pp. 670- 672 ,(2005) , 10.1126/SCIENCE.1109043
M. A. Ordal, L. L. Long, R. J. Bell, S. E. Bell, R. R. Bell, R. W. Alexander, C. A. Ward, Optical properties of the metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd, Pt, Ag, Ti, and W in the infrared and far infrared Applied Optics. ,vol. 22, pp. 1099- 1119 ,(1983) , 10.1364/AO.22.001099
A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, S. A. Maier, Terahertz surface plasmon polaritons on a helically grooved wire Applied Physics Letters. ,vol. 93, pp. 141109- ,(2008) , 10.1063/1.2988897