Title :
Active Tera Hertz (THz) spoof surface plasmon polariton (SSPP) switch comprising the perfect conductor meta-material
Author :
Song, Kyungjun ; Mazumder, Pinaki
Author_Institution :
Mech. Eng., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
The feasibility of realizing an active Tera Hertz (THz) switch by utilizing artificially corrugated perfect conductor meta-materials is reported in this paper by demonstrating that the strongly localized THz spoof surface plasmon polariton (SSPP) modes can be easily controlled by changing the refractive index of dielectrics inside a longitudinal metallic structure with a periodic array of grooves. Specifically, the paper shows that incorporation of electro-optical (EO) material such as a nematic liquid crystal (N-LC) into the plasmonic gap leads to a highly compact and efficient THz switch that is activated by a low voltage control-signal.
Keywords :
electro-optical effects; electro-optical switches; metamaterials; nematic liquid crystals; optical materials; periodic structures; plasmonics; polaritons; refractive index; surface plasmons; terahertz wave devices; active Terahertz switch; dielectrics; electrooptical material; frequency 0.1 THz to 3 THz; longitudinal metallic structure; nematic liquid crystal; perfect conductor metamaterial; periodic grooves array; plasmonic gap; refractive index; strongly localized THz spoof surface plasmon polariton; Conductors; Corrugated surfaces; Crystalline materials; Dielectric materials; Liquid crystals; Low voltage; Periodic structures; Plasmons; Refractive index; Switches; Active circuit; Spoof Surface Plasmon Polariton (SSPP); Tera hertz (THz); nematic liquid crystal;
Conference_Titel :
Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on
Conference_Location :
Genoa
Print_ISBN :
978-1-4244-4832-6
Electronic_ISBN :
1944-9399
