FOCUSING CONTROL BASED ON SPPs-SCATTERING MODULATION
2010 ◽
Vol 19
(04)
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pp. 535-541
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Keyword(s):
We demonstrate a design method of focusing-control device, which consists of single metallic nano-slit surrounded with the grooves at the metal exit surface. According to the principle of the constructive interference, the grooves are positioned to scatter the SPPs to the radiation lights with desired phases. The role of SPPs in the focusing control is investigated, by applying the design method in the four different types of metal film. The simulation results indicate that the focusing effects are dependant on the types of metal film, the metal film which supports the SPPs with a long propagation length can form an apparent focus spot, and the reason is discussed.
2016 ◽
Vol 86
(3-4)
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pp. 127-151
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Keyword(s):
1984 ◽
Vol 52
(02)
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pp. 172-175
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Keyword(s):
2019 ◽
Vol 14
(3)
◽
pp. 219-225
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2018 ◽
Vol 6
(26)
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