期刊
JOURNAL OF NANOPHOTONICS
卷 2, 期 -, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.3001731
关键词
nanotechnology; optical resonance; particle scattering; plasmon resonance; plasmons
资金
- NIBIB NIH HHS [R01 EB006201-04, R01 EB006201] Funding Source: Medline
Analytical expressions for the plasmon resonance frequencies of prolate and oblate spheroids and their dependence on ellipticity have been derived, and approximate bounds on these frequencies established. These formulas may be useful in tuning the plasmon resonance within certain limits. With increasing aspect ratio, the prolate spheroid resonance is red shifted relative to a sphere with no lower limit under the assumptions of a Drude dispersion model. On the other hand, the oblate resonances are blue shifted as the spheroid becomes increasingly. at, but up to a limit.
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