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Abstract
We provide some text that was inadvertently omitted from our article [J. Opt. Soc. Am. B 38, 2528 (2021) [CrossRef] ].
© 2021 Optica Publishing Group
In [1], the second paragraph of Section 3.A was inadvertently truncated. The correct paragraph is presented here.
A planar antenna consists of two main parts, a director and a reflector. To produce the director, a glass coverslip (PLANO, L42342 Stärke #1) was first coated with 2 nm titanium (Ti) [2], which played the role of an adhesion layer between the glass coverslip and a 10 nm gold film [3] (director). Furthermore, we evaporated a 75 nm ${\rm SiO_2}$ layer as a spacer on top of the gold film [similar to the structure presented in Fig. 1(a)]. All the material deposition processes were preformed by e-beam evaporation (Edwards E306A), with an evaporation rate of 0.1 nm/s. As shown in Fig. 2(a), the 10 nm gold layer on Ti does not form a uniform film, but ultra-thin islands. In this kind of structure, polarized light can excite localized surface plasmons [4].
REFERENCES
1. N. Soltani, E. R. Esfahany, S. I. Druzhinin, G. Schulte, J. Müller, B. Butz, H. Schönherr, N. Markešević, and M. Agio, “Scanning planar Yagi–Uda antenna for fluorescence detection,” J. Opt. Soc. Am. B 38, 2528–2535 (2021). [CrossRef]
2. W. S. Werner, K. Glantschnig, and C. Ambrosch-Draxl, “Optical constants and inelastic electron-scattering data for 17 elemental metals,” J. Phys. Chem. Ref. Data 38, 1013–1092 (2009). [CrossRef]
3. R. L. Olmon, B. Slovick, T. W. Johnson, D. Shelton, S.-H. Oh, G. D. Boreman, and M. B. Raschke, “Optical dielectric function of gold,” Phys. Rev. B 86, 235147 (2012). [CrossRef]
4. H. Sun, M. Yu, G. Wang, X. Sun, and J. Lian, “Temperature-dependent morphology evolution and surface plasmon absorption of ultrathin gold island films,” J. Phys. Chem. C 116, 9000–9008 (2012). [CrossRef]