Chinese Optics Letters, 2014, 12 (9): 092402, Published Online: Sep. 1, 2014
Graded-index ridge surface plasmon polaritons waveguide Download: 635次
Abstract
We propose and analyze a long-range dielectric-loaded surface plasmon polariton (SPP) waveguide based on graded-index ridge over server millimeter distances. Then the influence of the dielectric thickness and the ridge refractive index on propagation length and mode width is discussed and simulated with the finite ele-ment method. The result shows that the SPP can propagate as long as 3.42 mm, as well as the mode width keeping as 1.64 mm, a better one compared with the fixed refractive index. Considering its nanoscale dimen-sion and outstanding performance, the structure is easily realized when connected with electrodes.
Chunwei Ye, Yumin Liu, Jie Wang, Hongbo Lv, Zhongyuan Yu. Graded-index ridge surface plasmon polaritons waveguide[J]. Chinese Optics Letters, 2014, 12(9): 092402.