期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 26, 期 20, 页码 2051-2054出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2014.2346624
关键词
Plasmonics; diffraction; grating
资金
- National Research Foundation of Korea, Ministry of Science, ICT and Future Planning, Korean Government [2013R1A1A1006062]
- National Research Foundation of Korea [2013R1A1A1006062] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
An improved formula is suggested for the estimation of the diffraction angles of surface plasmon polaritons via dielectric or metal-dielectric ridge gratings. We propose on-axis and off-axis directional beaming structures designed by this formula and prove their appropriateness using rigorous numerical calculations. A plasmonic beam focusing structure is also proposed.
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