Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Nanosphere lithography for fabricating the pyramidal hyperbolic metasurface consisting of 3 cycles of alternatively stacked silica (24 nm) and silver (16 nm) thin films; (b-d) SEM images of the metasurface with different magnificationI(e) UV-Vis spectra for the fabricated metasurface (red curve) whereas the calculated extinction spectrum (black dashed curve, which was also shown in Fig. 1f) was shown for comparison.
