Resonant surface plasmons of a metal nanosphere treated as propagating surface plasmons<xref rid="cpb_27_6_067302_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_067302_fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11704058) and the Fundamental Research Funds for the Central Universities, China (Grant No. DUT16RC(3)111).</p> </fn>

Resonant surface plasmons of a metal nanosphere treated as propagating surface plasmons* *

Project supported by the National Natural Science Foundation of China (Grant No. 11704058) and the Fundamental Research Funds for the Central Universities, China (Grant No. DUT16RC(3)111).

Fang Yu-Rui^{1, 2, †}, Tian Xiao-Rui³

(color online) (a) Mie theory calculated extinction spectra of silver nanosphere in the air, with radii ranging from 5 nm to 190 nm. (b) Zoomed plots in panel (a). (c) Dispersion relations of the SPPs of the spherical nanoparticles (the same as those in panel (a)) and silver planar surface. The different resonant orders (m = 1, 2, 3, …) are indicated with the same colors as the arrows in panels (a) and (b).