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Discrete Dipole Approximation Aided Design Method for Nanostructure Arrays |
| ZHU Shao-Li;LUO Xian-Gang;DU Chun-Lei |
| State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209 |
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| Cite this article: |
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ZHU Shao-Li, LUO Xian-Gang, DU Chun-Lei 2007 Chin. Phys. Lett. 24 2902-2905 |
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Abstract A discrete dipole approximation (DDA) aided design method is proposed to determine the parameters of nanostructure arrays. The relationship between the thickness, period and extinction efficiency of nanostructure arrays for the given shape can be calculated using the DDA. Based on the calculated curves, the main parameters of the nanostructure arrays such as thickness and period can be determined. Using this aided method, a rhombic sliver nanostructure array is designed with the determinant parameters of thickness (40nm) and period (440nm). We further fabricate the rhombic sliver nanostructure arrays and testify the character of the extinction spectra. The obtained extinction spectra is within the visible range and the full width at
half maximum is 99nm, as is expected.
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| Keywords:
52.25.Tx
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Received: 15 June 2007
Published: 20 September 2007
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| PACS: |
52.25.Tx
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(Emission, absorption, and scattering of particles)
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