  In the past few years, carpet cloaking attracted interests because of its
feasibility at optical frequencies and potential in stealth technologies.
Metasurfaces have been proposed as a method to engineer ultra-thin carpet
cloaking surfaces due to their abilities to manipulate wavefronts,
polarization, and phase at subwavelength scale. However, achieving broadband
carpet cloaking with a significant bandwidth is one of the key remaining
challenges for metasurface designs. To date, broadband carpet cloaking based on
metasurfaces has not been achieved and cloaking is limited to discrete
wavelengths. Here, we propose and numerically demonstrate a novel metasurface
design for broadband carpet cloaking with linear polarization at visible
wavelengths from 650 nm to 800 nm. Our proposed method is a promising approach
for broadband structured interfaces.
