Numerical study on enhanced line focusing via buried metallic nanowire assisted binary plate
- Authors
- Kim, H.
- Issue Date
- Feb-2021
- Publisher
- MDPI AG
- Keywords
- Binary zone plate; Line focusing; Metallic nano-slit; Multi-focusing; Nanowire
- Citation
- Nanomaterials, v.11, no.2, pp.1 - 8
- Journal Title
- Nanomaterials
- Volume
- 11
- Number
- 2
- Start Page
- 1
- End Page
- 8
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16115
- DOI
- 10.3390/nano11020281
- ISSN
- 2079-4991
- Abstract
- "Line focusing, which collects light into a line rather than a single point, has an advantage on variable fields such as machining and imaging. The 1-dimensional metallic zone plate is one of the candidates for line focusing, which is ultra-thin and simple to fabricate. Metallic nano-slits can replace the metal blocked region to increase the efficiency, however, the efficiency and stability are still low. Therefore, this paper proposes a structure with an additional dielectric layer to protect the metallic nano-slit layer?a buried metallic wire structure?and verify the idea based on numerical simulations. Two structures are proposed. In terms of stability, a flat surface structure is proposed and a corrugated surface structure with a consistent thickness with the nano-slit is proposed which has low fabrication difficulty. The optimization of the buried wire structure and performance after applying the buried wire structure to the dual-line focusing plate is calculated by numerical simulation. Finally, it was shown that the electric field intensity was 2.13 times greater. ? 2021 by the author. Licensee MDPI, Basel, Switzerland.
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Collections - College of Science and Technology > Department of Electronic and Electrical Engineering > 1. Journal Articles
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