期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 14, 期 2, 页码 513-520出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2007.910766
关键词
1-D photonic crystal; extraordinary transmission; grating; surface plasmon (SP); terahertz (THz)
资金
- Region lie de France and the Conseil General de l'Essonne
We report on the transmission of terahertz (THz) electromagnetic waves through gold grids evaporated over a transparent silicon substrate. We observe a near-unity transmission in the subwavelength regime. When the THz wavelength is comparable to the grid periodicity, the grid serves as a grating coupler that allows us to excite guided modes in the device. These guided modes exhibit an intermediate behavior between a surface plasmon mode and modes of a dielectric slab waveguide.
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