2 papers
physics.optics2022
Metalenses with polarization-independent adaptive nano-antennas
Jianchao Zhang, Haowen Liang, Yong Long +8
Metalens research has made major advances in recent years. These advances rely on the simple design principle of arranging meta-atoms in regular arrays to create an arbitrary phase…
physics.optics2018
An Ultra-high Numerical Aperture Metalens at Visible Wavelengths
Haowen Liang, Qiaoling Lin, Xiangsheng Xie +8
We demonstrate a metalens with NA = 0.98 in air, a bandwidth (FWHM) of 274 nm and a focusing efficiency of 67% at 532 nm wavelength, which is close to the transmission performance…