Subwavelength asymmetric Au–VO<sub>2</sub> nanodisk dimer for switchable directional scattering<xref rid="cpb_27_11_117301fn1" ref-type="fn">*</xref><fn id="cpb_27_11_117301fn1"><label>*</label><p>Project supported by the National Key R&D Program of China (Grant No. 2017YFA0303800), the National Natural Science Foundation of China (Grant Nos. 11634010, 61675170, and 11874050), the Natural Science Basic Research Plan in Shaanxi Province, China (Grant No. 2017JM6022), and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102017zy017).</p></fn>

Subwavelength asymmetric Au–VO₂ nanodisk dimer for switchable directional scattering**

Project supported by the National Key R&D Program of China (Grant No. 2017YFA0303800), the National Natural Science Foundation of China (Grant Nos. 11634010, 61675170, and 11874050), the Natural Science Basic Research Plan in Shaanxi Province, China (Grant No. 2017JM6022), and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102017zy017).

Zhang Han-Mou, Shang Wu-Yun, Lu Hua, Xiao Fa-Jun^†, Zhao Jian-Lin^‡

(color online) (a) Scattering spectrum of individual Au nanodisk. (b) Scattering spectra of individual VO₂ nanodisk in the metallic (355 K) and semiconductor (300 K) states. (c) and (b) Calculated charge distributions at the resonant wavelength of Au (metallic VO₂) nanodisk indicated in (a) and (b), respectively. (e) Charge distribution of semiconducting VO₂ nanodisk excited at the wavelength of 1.064 μm.