Flat optics, metasurfaces, metalenses, and related materials promise novel on-demand light
modulation within ultrathin layers at wavelength scale, enabling a plethora of next …

Microlenses and microlens arrays are one of the indispensable components in modern
optical systems ranging from imaging and beam sha** to polarization control and …

Deflecting light with high efficiency over large angles with thin optical elements is
challenging but offers tremendous potential for applications, such as wearable displays and …

Nematic liquid crystals of achiral molecules or racemic mixtures of chiral ones form flat films
when suspended in submillimeter size grids and submerged under water. Recently, it has …

We propose a new concept of a foveated display with a single display module. A multi-
resolution and wide field of view (FOV) can be simultaneously achieved using only a single …

Gratings composed of cholesteric liquid crystals as an important optical element for
emerging applications such as augmented and virtual reality and are renowned for their …

Multi-color fluorescence imaging is a powerful tool for studying the spatial relationships and
interactions among sub-cellular structures in biological specimens. However, if improperly …

Ultracompact optical systems are increasingly sought after for applications such as
consumer electronics and medical imaging. Here, we present a design and manufacturing …

Nondiffracting Bessel, Mathieu, and Weber vector beams are generated by using ring-
shaped plasmonic geometric metasurfaces. The nondiffracting vector beam is produced by …

We demonstrate a new type of multifocal and extended depth of focus (EDOF) intraocular
lenses (IOLs) embedding μm-thin geometric phase (GP) lens layers. As an emerging …