期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.263901
关键词
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资金
- Korea Foundation for International Cooperation of Science Technology [K20815000003]
- Korea Science and Engineering Foundation (KOSEF), Korea government (MEST) [R112008-095-01000-0]
- National Research Foundation of Korea [2007-0057016, 2008-0062256, 2008-00580] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We propose and analyze the complementary structure of a metallic nanogap, namely, the metallic nanowire for magnetic field enhancement. A huge enhancement of the field up to a factor of 300 was achieved. Introducing the surface impedance concept, we also develop and numerically confirm a new analytic theory which successfully predicts the field enhancement factors for metal nanostructures. Compared to the predictions of the classical Babinet principle applied to a nanogap, an order of magnitude difference in the field enhancement factor was observed for the sub-skin-depth regime nanowire.
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