Surface plasmon enhancement of an optical anisotropy in porous silicon/metal composite
作者： V. Kochergin , M. Christophersen , H. Föll
DOI: 10.1007/S00340-004-1669-1
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摘要: We report on the theoretical results obtained by applying modified effective medium theory to a composite material consisting of mesoporous Si (110)-oriented substrate with pores filled silver through, e.g., electroplating process. The developed permits self-consistent determination dielectric permittivity tensor such materials. It is shown that optical anisotropy can be greatly enhanced at some wavelength ranges. While this generally uniaxial as in non-metal-filled etched (110) substrate, “sign” (i.e., positive or negative) changes portions spectrum. optimum parameters for an experimental observation theoretically predicted effects are determined.
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