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. Author manuscript; available in PMC: 2022 Jan 27.
Published in final edited form as: Nano Lett. 2020 Dec 29;21(2):973–979. doi: 10.1021/acs.nanolett.0c03957

Figure 2.

Figure 2.

Building blocks of chiral structures. (a,b) Experimental scattering spectra of a SiNP (a) and a SiNW (b). The insets show the corresponding optical and SEM images. Scale bars: 1 μm. (c) Scattering spectra of a 500 nm SiNP along with multipole decomposition calculated with Mie theory. MD, magnetic dipole; ED, electric diploe; MQ, magnetic quadrupole; EQ, electric quadrupole; MO, magnetic octupole; EO, electric octupole; and MH, magnetic hexadecapole. (d) Calculated scattering spectra and multipole decomposition of a SiNW with a diameter of 165 nm. Inset shows the electric and magnetic field distribution in the cross section of the SiNW at 700 nm.